@booklet {5559,
	title = {DARTON, N.H. and PAIGE, S. 1925. Central Black Hills Folio: South Dakota. Geologic Atlas of the United States: 219.},
	year = {1925},
	note = {DARTON, N.H. and PAIGE, S. 1925. Central Black Hills Folio: South Dakota. Geologic Atlas of the United States: 219.}
}
