(1986). Population: An Introduction To Concepts And Issues / John R. Weeks. Wadsworth.
Čikaški stil citiranja (17. izdanje)Population: An Introduction To Concepts And Issues / John R. Weeks. Wadsworth, 1986.
MLA način citiranja (8. izdanje)Population: An Introduction To Concepts And Issues / John R. Weeks. Wadsworth, 1986.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.