Cita APA (7th ed.)

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.

Cita Chicago (17th ed.)

Ehrlich, Paul R., i 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.

Cita MLA (9th ed.)

Ehrlich, Paul R., i 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.