APA (7th ed.) Citation

Holdren, J. P., & Ehrlich, P. R. (1971). Global ecology: Readings toward a rational strategy for man. Harcourt Brace Jovanovich.

Chicago Style (17th ed.) Citation

Holdren, John P., and Paul R. Ehrlich. Global Ecology: Readings Toward a Rational Strategy for Man. New York: Harcourt Brace Jovanovich, 1971.

MLA (8th ed.) Citation

Holdren, John P., and Paul R. Ehrlich. Global Ecology: Readings Toward a Rational Strategy for Man. Harcourt Brace Jovanovich, 1971.