Não informado. (2001). Special studies. Utah Geological and Mineralogical Survey.
Style de citation Chicago (17e éd.)Não informado. Special Studies. Salt Lake City, Utah: Utah Geological and Mineralogical Survey, 2001.
Style de citation MLA (8e éd.)Não informado. Special Studies. Utah Geological and Mineralogical Survey, 2001.
Attention : ces citations peuvent ne pas être correctes à 100%.