APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

Weeks, John Robert. Population: An Introduction to Concepts and Issues. 10th ed. Thomson/Wadsworth, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.