Krohn, D. H., & Weist, M. M. (1977). Principal information on Montana mines. Montana College of Mineral Science and Technology : distributed by Montana Bureau of Mines and Geology.
Cita Chicago Style (17a ed.)Krohn, Douglas H., y Margaret Mlynarczyk Weist. Principal Information on Montana Mines. Butte: Montana College of Mineral Science and Technology : distributed by Montana Bureau of Mines and Geology, 1977.
Cita MLA (8a ed.)Krohn, Douglas H., y Margaret Mlynarczyk Weist. Principal Information on Montana Mines. Montana College of Mineral Science and Technology : distributed by Montana Bureau of Mines and Geology, 1977.
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