APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

Geological Survey (U.S.) and Russell G. Tysdal. Mineral Resources of the Ruby Mountains Wilderness Study Area, Madison County, Montana. Dept. of the Interior, U.S. Geological Survey, 1987.