Ehrlich, A. H., & Ehrlich, P. R. (1987). Earth. Thames Methuen.
Chicago Style (17th ed.) CitationEhrlich, Anne H., and Paul R. Ehrlich. Earth. London: Thames Methuen, 1987.
MLA (9th ed.) CitationEhrlich, Anne H., and Paul R. Ehrlich. Earth. Thames Methuen, 1987.
Warning: These citations may not always be 100% accurate.