Não informado. (1961). Geology Studies. Brigham Young University.
Style de citation Chicago (17e éd.)Não informado. Geology Studies. Provo, Utah: Brigham Young University, 1961.
Style de citation MLA (8e éd.)Não informado. Geology Studies. Brigham Young University, 1961.
Attention : ces citations peuvent ne pas être correctes à 100%.