Preliminary Report of the Activities of the State Geologist’s Office and the Geological Survey of Wyoming for the Five Year Period (1938)

Marzel, J.G., 1938, Preliminary report of the activities of the State Geologist's office and the Geological Survey of Wyoming for the five-year period from March 1, 1933 to February 18, 1938: Geological Survey of Wyoming [Wyoming State Geological Survey] 1933–1938 Preliminary Report, 7 p.