Derkey, P. D. (1986). Coal stratigraphy of the Lame Deer 30 x 60-minute quadrangle, southeastern Montana. Montana Bureau of Mines and Geology.
Chicago Style (17th ed.) CitationDerkey, Pamela Dunlap. Coal Stratigraphy of the Lame Deer 30 X 60-minute Quadrangle, Southeastern Montana. [Butte]: Montana Bureau of Mines and Geology, 1986.
MLA (9th ed.) CitationDerkey, Pamela Dunlap. Coal Stratigraphy of the Lame Deer 30 X 60-minute Quadrangle, Southeastern Montana. Montana Bureau of Mines and Geology, 1986.
Warning: These citations may not always be 100% accurate.