Não informado. (2001). Special studies. Utah Geological and Mineralogical Survey.
Chicago-viite (17. p.)Não informado. Special Studies. Salt Lake City, Utah: Utah Geological and Mineralogical Survey, 2001.
MLA-viite (8. p.)Não informado. Special Studies. Utah Geological and Mineralogical Survey, 2001.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.