APA (7e ed.) Bronvermelding

Não informado. (1911). Annals of the Association of American Geographers. Association of American Geographers.

Chicago (17e ed.) Bronvermelding

Não informado. Annals of the Association of American Geographers. Washington: Association of American Geographers, 1911.

MLA (8e ed.) Bronvermelding

Não informado. Annals of the Association of American Geographers. Association of American Geographers, 1911.

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