APA (7e ed.) Bronvermelding

Não informado. (2012). Human Geography. Institute for Human Geography.

Chicago (17e ed.) Bronvermelding

Não informado. Human Geography. Boston, Mass: Institute for Human Geography, 2012.

MLA (8e ed.) Bronvermelding

Não informado. Human Geography. Institute for Human Geography, 2012.

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