Ж44250 Utah Geological and Mineral Survey(Salt Lake City, UT). Survey Notes [Текст] / Utah Geological and Mineral Survey (Salt Lake City, Utah) ; ed. staff V. Clarke [et al.]. - Журнал виходить з 1964р.- URL: https://geology.utah.gov/map-pub/survey-notes/past_survey_notes/ ; https://en.wikipedia.org/wiki/Utah_Geological_Survey