APA (7th ed.) Citation

Derkey, P. D., & Bartholomew, M. J. (1988). Geologic map of the Ramsay quadrangle, Montana. Montana Bureau of Mines and Geology.

Chicago Style (17th ed.) Citation

Derkey, Pamela Dunlap, and Mervin J. Bartholomew. Geologic Map of the Ramsay Quadrangle, Montana. [Butte, Mont.]: Montana Bureau of Mines and Geology, 1988.

MLA (9th ed.) Citation

Derkey, Pamela Dunlap, and Mervin J. Bartholomew. Geologic Map of the Ramsay Quadrangle, Montana. Montana Bureau of Mines and Geology, 1988.