Stratigraphy and structure of the northern and western flanks of the Black Hills uplift, Wyoming, Montana and South Dakota,
by Charles S. Robinson, William J. Mapel and Maximilian H. Bergendahl.
- Washington, U.S. Govt. Print. Off., 1964.
- iv, 134 p. illus., maps (2 col.) 30 cm.
Part of illustrative matter fold. in pocket. Prepared partly on behalf of the U.S. Atomic Energy Commission.