Upper Cambrian Orr Formation, its subdivisions and correlatives in Western Utah - Hintze, Lehi F.; Palmer, Allison R.; United States Dept. of Interior (Washington, D.C : United States Government Printing Office, 1976)
Keywords: Geology, Stratigraphic -- Cambrian -- Nomenclatur; Geology -- Utah -- Nomenclature; Geology -- Utah -- Survey; Geology -- Utah