Ground-water resources of Sheridan County, Wyoming /
by Marlin E. Lowry and T. Ray Cummings.
- Washington : U.S. Govt. Print. Off., 1966.
- iv, 77 p., [1] leaf of plates : ill., maps (1 fold. col.) ; 24 cm.
- Geological Survey water-supply paper ; 1807 .
"Prepared in cooperation with the Wyoming State Engineer."
With: Ground-water resources and geology of northern and central Johnson County, Wyoming / by Harold A. Whitcomb, T. Ray Cummings, and Richard A. McCullough. Washington : Govt. Print. Off., 1966. Bound together subsequent to publication.