Campbell, N. P. (1978). Caves of Montana. Montana College of Mineral Science and Technology : for sale by Montana Bureau of Mines and Geology.
Style de citation Chicago (17e éd.)Campbell, Newell P. Caves of Montana. Butte: Montana College of Mineral Science and Technology : for sale by Montana Bureau of Mines and Geology, 1978.
Style de citation MLA (8e éd.)Campbell, Newell P. Caves of Montana. Montana College of Mineral Science and Technology : for sale by Montana Bureau of Mines and Geology, 1978.
Attention : ces citations peuvent ne pas être correctes à 100%.