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.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKrohn, Douglas H., और 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.
एमएलए (8वां संस्करण) प्रशस्ति पत्रKrohn, Douglas H., और 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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