Ehrlich, P. R., & Ehrlich, A. H. (1990). The population explosion: From global warming to rain forest destruction, famine, and air and water pollution why over population is our #1 problem. Simon and Schuster.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEhrlich, Paul R., और Anne H. Ehrlich. The Population Explosion: From Global Warming to Rain Forest Destruction, Famine, and Air and Water Pollution Why over Population Is Our #1 Problem. New York: Simon and Schuster, 1990.
एमएलए (9वां संस्करण) प्रशस्ति पत्रEhrlich, Paul R., और Anne H. Ehrlich. The Population Explosion: From Global Warming to Rain Forest Destruction, Famine, and Air and Water Pollution Why over Population Is Our #1 Problem. Simon and Schuster, 1990.
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