APA (7th ed.) Citation

Tysdal, R. G., & Berg, R. B. (1987). Mineral resources of the Ruby Mountains wilderness study area, Madison County, Montana. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Tysdal, Russell G., and Richard B. Berg. Mineral Resources of the Ruby Mountains Wilderness Study Area, Madison County, Montana. [Reston, Va.]: Department of the Interior, U.S. Geological Survey, 1987.

MLA (9th ed.) Citation

Tysdal, Russell G., and Richard B. Berg. Mineral Resources of the Ruby Mountains Wilderness Study Area, Madison County, Montana. Department of the Interior, U.S. Geological Survey, 1987.