TY  - BOOK
AU  - Ehrlich,Paul R.
AU  - Ehrlich,Anne H.
AU  - Holdren,John P.
TI  - Ecoscience: population, resources, environment 
SN  - 0716700298 (pbk.) 0716705672
PY  - 1977///
CY  - San Francisco
PB  - W.H. Freeman
KW  - Population
KW  - Pollution
KW  - Human ecology
N1  - First-2d ed. published under title: Population, resources, environment
ER  -