APA (7e ed.) Bronvermelding

Não informado. World cartography. United Nations, Department of Social Affairs.

Chicago (17e ed.) Bronvermelding

Não informado. World Cartography. New York: United Nations, Department of Social Affairs.

MLA (8e ed.) Bronvermelding

Não informado. World Cartography. United Nations, Department of Social Affairs.

Let op: Deze citaties zijn niet altijd 100% accuraat.