Citazione Stile APA (7a Edizione)

Weeks, J. R. (2002). Population: An introduction to concepts and issues (Eight edition.). Wadsworth/Thomson Learning.

Citazione stile Chigago Style (17a edizione)

Weeks, John Robert. Population: An Introduction to Concepts and Issues. Eight edition. Belmont, California: Wadsworth/Thomson Learning, 2002.

Citatione MLA (9a ed.)

Weeks, John Robert. Population: An Introduction to Concepts and Issues. Eight edition. Wadsworth/Thomson Learning, 2002.