Berg, R. B. (1974). Building stone in Montana. Montana College of Mineral Science and Technology : for sale by Montana Bureau of Mines and Geology.
Cita Chicago Style (17a ed.)Berg, Richard B. Building Stone in Montana. Butte: Montana College of Mineral Science and Technology : for sale by Montana Bureau of Mines and Geology, 1974.
Cita MLA (8a ed.)Berg, Richard B. Building Stone in Montana. Montana College of Mineral Science and Technology : for sale by Montana Bureau of Mines and Geology, 1974.
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