APA Citation

Ehrlich, & Ehrlich. (1970). Population resources environment: Issues in human ecology. San Francisco: W.H. Freeman.

Chicago Style Citation

Ehrlich, and Ehrlich. Population Resources Environment: Issues in Human Ecology. San Francisco: W.H. Freeman, 1970.

MLA Citation

Ehrlich, and Ehrlich. Population Resources Environment: Issues in Human Ecology. San Francisco: W.H. Freeman, 1970.

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