@book{27645,
	author = {Mineral resources survey. and Mining association of Montana.},
	title = {Directory of Montana mining properties.},
	publisher = {Montana school of mines,},
	year = {1940.},
	series = {Montana. State bureau of mines and geology. Memoir},
	address = {Butte, Mont.,},
	note = {At head of title: State of Montana, Bureau of mines and geology, Francis A. Thomson, director ...}
}