Não informado. (1999). Contributions to Geology. University of Wyoming, Department of Geology.
Style de citation Chicago (17e éd.)Não informado. Contributions to Geology. Laramie, Wyo: University of Wyoming, Department of Geology, 1999.
Style de citation MLA (8e éd.)Não informado. Contributions to Geology. University of Wyoming, Department of Geology, 1999.
Attention : ces citations peuvent ne pas être correctes à 100%.