TY  - BOOK
AU  - Ehrlich, Paul R.
AU  - Ehrlich, Anne H.
AU  - Holdren, John P.
TI  - Ecoscience : Population, Resources, Environment
SN  - 0716705672
U1  - 304.2 
PY  - 1970///
CY  - San Francisco
PB  - W. H. Freeman and Company
KW  - Factors affecting social behavior
ER  -