APA-viite

Zachariah,K C. (1980). Demographic aspects of migration in west Africa. World Bank.

Chicago-tyylinen lähdeviittaus

Zachariah,K C. Demographic Aspects of Migration in West Africa. Washington: World Bank, 1980.

MLA-viite

Zachariah,K C. Demographic Aspects of Migration in West Africa. World Bank, 1980.