Fifty-Ninth Annual Report of the Geological Survey of Wyoming (1992)

Glass, G.B., and Bruhnke, S.G., 1992, Fifty-ninth annual report of the Geological Survey of Wyoming for fiscal year 1992, July 1, 1991 to June 30, 1992: Geological Survey of Wyoming [Wyoming State Geological Survey] 1991–1992 Annual Report, 16 p.