Citazione Stile APA (7a Edizione)

Weeks, J. R. (2012). An introduction to population (11th ed.). Wadsworth Cengage Learning.

Citazione stile Chigago Style (17a edizione)

Weeks, John Robert. An Introduction to Population. 11th ed. Belmont, Calif: Wadsworth Cengage Learning, 2012.

Citatione MLA (9a ed.)

Weeks, John Robert. An Introduction to Population. 11th ed. Wadsworth Cengage Learning, 2012.