Cita APA (7th ed.)

Weeks, J. R. (1978). Population: An introduction to concepts and issues. Wadsworth Pub. Co..

Cita Chicago (17th ed.)

Weeks, John R. Population: An Introduction to Concepts and Issues. Belmont, Calif.: Wadsworth Pub. Co., 1978.

Cita MLA (8th ed.)

Weeks, John R. Population: An Introduction to Concepts and Issues. Wadsworth Pub. Co., 1978.