APA (7th ed.) Citation

Phelps, H. A., & Henderson, D. (1958). Population in its human aspects. Appleton-Century-Crofts.

Chicago Style (17th ed.) Citation

Phelps, Harold A., and David Henderson. Population in Its Human Aspects. New York: Appleton-Century-Crofts, 1958.

MLA (9th ed.) Citation

Phelps, Harold A., and David Henderson. Population in Its Human Aspects. Appleton-Century-Crofts, 1958.