Mineral resources of the Devils Playground and Twin Buttes Wilderness Study Areas, Sweetwater County, Wyoming / by Richard E. Van Loenen and W. Anthony Bryant, Michael E. Lane.
Imprint
[Reston, Va.?] : U.S. GDept. of the Interior, U.S. Geological Survey ; Denver, CO : For sale by the Books and Open-File Reports Section, U.S. Geological Survey, 1991.