00000nam a2200000 a 4500 20251202164143.0 0716709465 577 FRE Scientific American .Inc _ Biosphere San Francisco W.H. Freeman 1970 viii, 134 p. 25 cm. HB Biosphere, Ecology ENG 100 010 _ 50620 LIBSC C 9077 LIBSC C 1391 1391 0 0 0 0 PU PU 1998-04-08 6.50 0 577 FRE 50620 BK 0 0 0 0 PU PU 1998-04-08 0 577 FRE 9077 BK