APA Citation

Ehrlich, P. R., & Ehrlich, A. H. (1972). Population resources enviroment: Issues in human ecology. San Francisco: W.H Freeman.

Chicago Style Citation

Ehrlich, Paul R., and Anne H. Ehrlich. Population Resources Enviroment: Issues in Human Ecology. San Francisco: W.H Freeman, 1972.

MLA Citation

Ehrlich, Paul R., and Anne H. Ehrlich. Population Resources Enviroment: Issues in Human Ecology. San Francisco: W.H Freeman, 1972.

Warning: These citations may not always be 100% accurate.