Cita APA (7a ed.)

Weeks, J. R. (1996). Population: An introduction to concepts and issues (Sixth edition.). Wadsworth Publishing Company.

Cita Chicago Style (17a ed.)

Weeks, John Robert. Population: An Introduction to Concepts and Issues. Sixth edition. Belmont, California: Wadsworth Publishing Company, 1996.

Cita MLA (9a ed.)

Weeks, John Robert. Population: An Introduction to Concepts and Issues. Sixth edition. Wadsworth Publishing Company, 1996.