Mineral resource potential and geology of the Black Hills National Forest, South Dakota and Wyoming /
by Ed DeWitt [and others] ; with a section on Salable commodities by John S. Dersch.

APA Citation

Dersch, J. S., DeWitt, E., Geological Survey (U.S.). (1986). Mineral resource potential and geology of the Black Hills National Forest, South Dakota and Wyoming. [Reston, Va.]: Dept. of the Interior, U.S. Geological Survey .

MLA Citation

Dersch, John S, Ed DeWitt, and Geological Survey (U.S.). Mineral Resource Potential And Geology of the Black Hills National Forest, South Dakota And Wyoming. [Reston, Va.]: Dept. of the Interior, U.S. Geological Survey , 1986.