APA (7e ed.) Bronvermelding

Não informado. (1999). Contributions to Geology. University of Wyoming, Department of Geology.

Chicago (17e ed.) Bronvermelding

Não informado. Contributions to Geology. Laramie, Wyo: University of Wyoming, Department of Geology, 1999.

MLA (8e ed.) Bronvermelding

Não informado. Contributions to Geology. University of Wyoming, Department of Geology, 1999.

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