APA (7th ed.) Citation

Ehrlich, P. R., & Ehrlich, A. H. (1990). The population explosion / Paul R. Ehrlich & Anne H. Ehrlich. Hutchinson.

Chicago Style (17th ed.) Citation

Ehrlich, Paul R., and Anne H. Ehrlich. The Population Explosion / Paul R. Ehrlich & Anne H. Ehrlich. London: Hutchinson, 1990.

MLA (9th ed.) Citation

Ehrlich, Paul R., and Anne H. Ehrlich. The Population Explosion / Paul R. Ehrlich & Anne H. Ehrlich. Hutchinson, 1990.

Warning: These citations may not always be 100% accurate.