1. X-ray mineralogy of the Parachute Creek Member, Green River Formation, in the Northern Piceance Creek Basin, Colorado, Author/Creator: Brobst, Donald Albert, 1925- Publication/Creation: Washington : U.S. Govt. Print. Off, 1973 Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 803-808. Access & Availability: Loading
2. X-ray mineralogy of the Parachute Creek Member, Green River Formation, in the Northern Piceance Creek Basin, Colorado Author/Creator: Brobst, Donald A. 1925-2011, (Donald Albert), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1973 Resource Type: Book Access & Availability: Loading