APA (7th ed.) Citation

Stockwell, E. G., & Groat, H. T. (1984). World population: An introduction to demography. Watts.

Chicago Style (17th ed.) Citation

Stockwell, Edward G., and H. T. Groat. World Population: An Introduction to Demography. New York u.a: Watts, 1984.

MLA (9th ed.) Citation

Stockwell, Edward G., and H. T. Groat. World Population: An Introduction to Demography. Watts, 1984.