81321. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 281, Number 5382.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81312. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 280, Number 5372.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81329. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 282, Number 5391.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81328. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 282, Number 5390.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81327. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 282, Number 5389.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81326. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 282, Number 5388.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81325. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 282, Number 5387.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81324. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 282, Number 5386.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81331. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 282, Number 5393.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81322. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 281, Number 5383.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81332. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 282, Number 5394.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81320. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 281, Number 5381.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81319. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 281, Number 5380.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81318. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 281, Number 5379.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81317. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 281, Number 5378.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81316. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 281, Number 5377.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81314. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 281, Number 5375.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81373. AAAS.   Science.   American Association for the Advancement of Science, 1999, Science, Volume 285, Number 5434.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81323. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 281, Number 5384.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81351. AAAS.   Science.   American Association for the Advancement of Science, 1999, Science, Volume 284, Number 5412.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

91808. AAAS.   Science.   American Association for the Advancement of Science, 2001, Science, Volume 294, Number 5547.   Softbound, minor signs of use, text in very good condition.    $5.00

81369. AAAS.   Science.   American Association for the Advancement of Science, 1999, Science, Volume 285, Number 5430.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81367. AAAS.   Science.   American Association for the Advancement of Science, 1999, Science, Volume 285, Number 5428.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81359. AAAS.   Science.   American Association for the Advancement of Science, 1999, Science, Volume 284, Number 5420.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81358. AAAS.   Science.   American Association for the Advancement of Science, 1999, Science, Volume 284, Number 5419.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81355. AAAS.   Science.   American Association for the Advancement of Science, 1999, Science, Volume 284, Number 5416.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81354. AAAS.   Science.   American Association for the Advancement of Science, 1999, Science, Volume 284, Number 5415.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81330. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 282, Number 5392.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81352. AAAS.   Science.   American Association for the Advancement of Science, 1999, Science, Volume 284, Number 5413.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81311. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 280, Number 5371.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81350. AAAS.   Science.   American Association for the Advancement of Science, 1999, Science, Volume 284, Number 5411.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81348. AAAS.   Science.   American Association for the Advancement of Science, 1999, Science, Volume 283, Number 5409.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81346. AAAS.   Science.   American Association for the Advancement of Science, 1999, Science, Volume 283, Number 5407.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81342. AAAS.   Science.   American Association for the Advancement of Science, 1999, Science, Volume 283, Number 5403.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81341. AAAS.   Science.   American Association for the Advancement of Science, 1999, Science, Volume 283, Number 5402.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81335. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 282, Number 5397.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81333. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 282, Number 5395.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81353. AAAS.   Science.   American Association for the Advancement of Science, 1999, Science, Volume 284, Number 5414.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81147. AAAS.   Science.   American Association for the Advancement of Science, 2000, Science, Volume 288, Number 5473.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81313. AAAS.   Science.   American Association for the Advancement of Science, 1998, Science, Volume 281, Number 5373.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81158. AAAS.   Science.   American Association for the Advancement of Science, 2000, Science, Volume 289, Number 5485.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81156. AAAS.   Science.   American Association for the Advancement of Science, 2000, Science, Volume 289, Number 5483.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81155. AAAS.   Science.   American Association for the Advancement of Science, 2000, Science, Volume 289, Number 5482.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81153. AAAS.   Science.   American Association for the Advancement of Science, 2000, Science, Volume 289, Number 5479.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81151. AAAS.   Science.   American Association for the Advancement of Science, 2000, Science, Volume 289, Number 5477.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81150. AAAS.   Science.   American Association for the Advancement of Science, 2000, Science, Volume 289, Number 5476.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81161. AAAS.   Science.   American Association for the Advancement of Science, 2000, Science, Volume 289, Number 5488.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81148. AAAS.   Science.   American Association for the Advancement of Science, 2000, Science, Volume 288, Number 5474.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81162. AAAS.   Science.   American Association for the Advancement of Science, 2000, Science, Volume 290, Number 5489.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00

81146. AAAS.   Science.   American Association for the Advancement of Science, 2000, Science, Volume 288, Number 5472.   Softbound, xlib, minor signs of use, text in very good condition.    $5.00