Campbell, N. P. (1978). Caves of Montana. Montana College of Mineral Science and Technology : for sale by Montana Bureau of Mines and Geology.
Цитирование в стиле Чикаго (17-е изд.)Campbell, Newell P. Caves of Montana. Butte: Montana College of Mineral Science and Technology : for sale by Montana Bureau of Mines and Geology, 1978.
Цитирование MLA (8-е изд.)Campbell, Newell P. Caves of Montana. Montana College of Mineral Science and Technology : for sale by Montana Bureau of Mines and Geology, 1978.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.