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

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

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

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

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

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

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

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

81465. AAAS.   Science.   American Association for the Advancement of Science, 1981, Science, Volume 211, Number 4482.   Softbound, usual signs of use, text in very good condition.    $5.00

81421. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 207, Number 4438.   Softbound, usual signs of use, text in very good condition.    $5.00

81453. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 210, Number 4470.   Softbound, usual signs of use, text in very good condition.    $5.00

81454. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 210, Number 4471.   Softbound, usual signs of use, text in very good condition.    $5.00

81455. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 210, Number 4472.   Softbound, usual signs of use, text in very good condition.    $5.00

81456. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 210, Number 4473.   Softbound, usual signs of use, text in very good condition.    $5.00

81457. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 210, Number 4474.   Softbound, usual signs of use, text in very good condition.    $5.00

81458. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 210, Number 4475.   Softbound, usual signs of use, text in very good condition.    $5.00

81459. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 210, Number 4476.   Softbound, usual signs of use, text in very good condition.    $5.00

81460. AAAS.   Science.   American Association for the Advancement of Science, 1981, Science, Volume 211, Number 4477.   Softbound, usual signs of use, text in very good condition.    $5.00

81461. AAAS.   Science.   American Association for the Advancement of Science, 1981, Science, Volume 211, Number 4478.   Softbound, usual signs of use, text in very good condition.    $5.00

81451. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 210, Number 4467.   Softbound, usual signs of use, text in very good condition.    $5.00

81463. AAAS.   Science.   American Association for the Advancement of Science, 1981, Science, Volume 211, Number 4480.   Softbound, usual signs of use, text in very good condition.    $5.00

81450. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 210, Number 4466.   Softbound, usual signs of use, text in very good condition.    $5.00

81466. AAAS.   Science.   American Association for the Advancement of Science, 1981, Science, Volume 211, Number 4484.   Softbound, usual signs of use, text in very good condition.    $5.00

81467. AAAS.   Science.   American Association for the Advancement of Science, 1981, Science, Volume 211, Number 4485.   Softbound, usual signs of use, text in very good condition.    $5.00

81468. AAAS.   Science.   American Association for the Advancement of Science, 1981, Science, Volume 211, Number 4486.   Softbound, usual signs of use, text in very good condition.    $5.00

81469. AAAS.   Science.   American Association for the Advancement of Science, 1981, Science, Volume 211, Number 4487.   Softbound, usual signs of use, text in very good condition.    $5.00

81470. AAAS.   Science.   American Association for the Advancement of Science, 1981, Science, Volume 211, Number 4488.   Softbound, usual signs of use, text in very good condition.    $5.00

81473. AAAS.   Science.   American Association for the Advancement of Science, 1981, Science, Volume 212, Number 4490.   Softbound, usual signs of use, text in very good condition.    $5.00

81474. AAAS.   Science.   American Association for the Advancement of Science, 1981, Science, Volume 212, Number 4491.   Softbound, usual signs of use, text in very good condition.    $5.00

81475. AAAS.   Science.   American Association for the Advancement of Science, 1981, Science, Volume 212, Number 4492.   Softbound, usual signs of use, text in very good condition.    $5.00

81476. AAAS.   Science.   American Association for the Advancement of Science, 1981, Science, Volume 212, Number 4493.   Softbound, usual signs of use, text in very good condition.    $5.00

81624. AAAS.   Science.   American Association for the Advancement of Science, 1983, Science, Volume 222, Number 4630.   Softbound, usual signs of use, text in very good condition.    $5.00

81462. AAAS.   Science.   American Association for the Advancement of Science, 1981, Science, Volume 211, Number 4479.   Softbound, usual signs of use, text in very good condition.    $5.00

81436. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 209, Number 4454.   Softbound, usual signs of use, text in very good condition.    $5.00

81424. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 208, Number 4441.   Softbound, usual signs of use, text in very good condition.    $5.00

81425. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 208, Number 4442.   Softbound, usual signs of use, text in very good condition.    $5.00

81426. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 208, Number 4443.   Softbound, usual signs of use, text in very good condition.    $5.00

81427. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 208, Number 4444.   Softbound, usual signs of use, text in very good condition.    $5.00

81428. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 208, Number 4445.   Softbound, usual signs of use, text in very good condition.    $5.00

81429. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 208, Number 4446.   Softbound, usual signs of use, text in very good condition.    $5.00

81430. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 208, Number 4447.   Softbound, usual signs of use, text in very good condition.    $5.00

81431. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 208, Number 4449.   Softbound, usual signs of use, text in very good condition.    $5.00

81432. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 208, Number 4450.   Softbound, usual signs of use, text in very good condition.    $5.00

81433. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 208, Number 4451.   Softbound, usual signs of use, text in very good condition.    $5.00

81452. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 210, Number 4468.   Softbound, usual signs of use, text in very good condition.    $5.00

81435. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 209, Number 4453.   Softbound, usual signs of use, text in very good condition.    $5.00

81478. AAAS.   Science.   American Association for the Advancement of Science, 1981, Science, Volume 212, Number 4495.   Softbound, usual signs of use, text in very good condition.    $5.00

81437. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 209, Number 4455.   Softbound, usual signs of use, text in very good condition.    $5.00

81438. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 209, Number 4456.   Softbound, usual signs of use, text in very good condition.    $5.00

81440. AAAS.   Science.   American Association for the Advancement of Science, 1980, Science, Volume 209, Number 4458.   Softbound, usual signs of use, text in very good condition.    $5.00