The coal resources of McCone County, Montana,
by A. J. Collier and M. M. Knechtel.
- Washington, U.S. Govt. Print. Off., 1939.
- vii, 80 p. incl. illus., tables, diagrs. 16 pl. on 11 l. (incl. fold. maps, fold. diagrs.) 23 cm.
At head of title: United States Department of the Interior. Geological Survey. Folded colored map (pl. 16) in pocket.
gs 39000253
Coal mines and mining--Montana. Geology--Montana--McCone County.