Geologic framework of the ground-water system in Jurassic and Cretaceous rocks in the northern Great Plains, in parts of Montana, North Dakota, South Dakota, and Wyoming - Anna, Lawrence O. (Washington, D.C. : United States Government Printing Office, U.S. Geological Survey, 1986)
Accompanied by 18 fold. leaves of plates issued in a portfolio
Bibliography: p. B30-B36
Keywords: Geology, Stratigraphic -- Jurassic; Geology, Stratigraphic -- Cretaceous; Geology -- Great Plains; Groundwater -- Great Plains