Ehrlich, P. R., & Ehrlich, A. H. (1972). Population, resources, environment: Issues in human ecology (2nd ed.). San Francisco, CA: Freeman.
Chicago Style CitationEhrlich, Paul R., andfavorite Anne H. Ehrlich. Population, Resources, Environment: Issues in Human Ecology. 2nd ed. San Francisco, CA: Freeman, 1972.
MLA CitationEhrlich, Paul R., andfavorite Anne H. Ehrlich. Population, Resources, Environment: Issues in Human Ecology. 2nd ed. San Francisco, CA: Freeman, 1972.
Warning: These citations may not always be 100% accurate.