TY  - BOOK
AU  - Paul R Ehrlich, Anne H Ehrlich
TI  - Population resources environment : issues in human ecology
SN  - 0-7167-0680-6
U1  - 301.32 Ehr/Ehr 
PY  - 1970///
CY  - W H Freeman, San Francisco
KW  - Sociology
ER  -