APA (7th ed.) Citation

Weeks, J. R. (1986). Population: An introduction to concepts and issues (3rd ed.). Wadsworth.

Chicago Style (17th ed.) Citation

Weeks, John R. Population: An Introduction to Concepts and Issues. 3rd ed. Belmont, Calif: Wadsworth, 1986.

MLA (9th ed.) Citation

Weeks, John R. Population: An Introduction to Concepts and Issues. 3rd ed. Wadsworth, 1986.