TY  - BOOK
AU  - Ehrlich, Paul R.
AU  - Ehrlich, Anne H.
AU  - Holdren, John P.
TI  - Human Ecology: Problems and Solutions
SN  - 0716705958
U1  - 301.31 
PY  - 1973///
CY  - San Francisco
PB  - W. H. Freeman and Company
KW  - Social sciences
KW  - Sociology
KW  - Human ecology
ER  -