APA-viite (7. p.)

Weeks, J. R. (2008). Population: An introduction to concepts and issues (10th ed.). Wadsworth/Cengage Learning.

Chicago-viite (17. p.)

Weeks, John R. Population: An Introduction to Concepts and Issues. 10th ed. Belmont, CA: Wadsworth/Cengage Learning, 2008.

MLA-viite (8. p.)

Weeks, John R. Population: An Introduction to Concepts and Issues. 10th ed. Wadsworth/Cengage Learning, 2008.