APA-viite

Weeks, J. R. (1999). Population: An introduction to concepts and issues (7th ed.). Wadsworth Publishing Co.

Chicago-tyylinen lähdeviittaus

Weeks, John R. Population: An Introduction to Concepts and Issues. 7th ed. Relmount: Wadsworth Publishing Co, 1999.

MLA-viite

Weeks, John R. Population: An Introduction to Concepts and Issues. 7th ed. Wadsworth Publishing Co, 1999.