APA (7e ed.) Bronvermelding

Não informado. (2018). Report. Ohio State University, Institute of Polar Studies.

Chicago (17e ed.) Bronvermelding

Não informado. Report. Columbus, Ohio: Ohio State University, Institute of Polar Studies, 2018.

MLA (8e ed.) Bronvermelding

Não informado. Report. Ohio State University, Institute of Polar Studies, 2018.

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