TY  - BOOK
AU  - Ehrlich,Paul R.
AU  - Holdren,John P.
AU  - Holm,Richard W.
TI  - Man and the ecosphere: readings from Scientific American. 
SN  - 060802820
AV  - GF8 .E37 1956
U1  - 301.3/1/08 
PY  - 1971///
CY  - San Francisco
PB  - W. H. Freeman
KW  - Human ecology
N1  - Bibliography: p. [293]-301
ER  -