TY  - BOOK
AU  - Ehrlich,Paul R.
AU  - Ehrilch,Anne H.
TI  - Population resources environment
U1  - 301.3 
PY  - 1970///
CY  - San Francisco
PB  - Freeman
KW  - Sociology
KW  - Management
KW  - Population
KW  - Resource
ER  -