TY - BOOK T1 - Environmental studies :the Earth as a living planet / DA - c1982. CY - Columbus, [Ohio] : AU - Botkin, Daniel B. CN - QH541 .B65 1982 CN - QH541 PB - C.E. Merrill Pub. Co., PP - Columbus, [Ohio] : PY - c1982. ID - 67192 KW - Ecology. KW - Pollution KW - Conservation of natural resources. SN - 0675098130 TI - Environmental studies :the Earth as a living planet / ER -