TY - BOOK ED - Scientific American. TI - Biosphere U1 - Q 91:574.08 BIO PY - 1970/// CY - San-Francisco: PB - W.H. Freeman, KW - Biosphere KW - Addresses, essays, lectures N1 - "A Scientific American book."; "Originally appeared as articles in the September, 1970 issue of Sci entific American."; Bibligraphy: p. 129-130 ER -