Ehrlich, P. R., & Ehrlich, A. H. (1970). Population resources environment: Issues in human ecology. San Francisco: W. H. Freeman Company.
Chicago Style CitationEhrlich, Paul R., and Anne H. Ehrlich. Population Resources Environment: Issues in Human Ecology. San Francisco: W. H. Freeman Company, 1970.
MLA CitationEhrlich, Paul R., and Anne H. Ehrlich. Population Resources Environment: Issues in Human Ecology. San Francisco: W. H. Freeman Company, 1970.
Warning: These citations may not always be 100% accurate.