APA (7th ed.) Citation

Stoll, W. C., & Armstrong, F. C. (1958). Optical calcite deposits in Park and Sweet Grass Counties, Montana. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Stoll, W. C., and Frank C. Armstrong. Optical Calcite Deposits in Park and Sweet Grass Counties, Montana. [Washington, D.C.]: United States Department of the Interior, Geological Survey, 1958.

MLA (9th ed.) Citation

Stoll, W. C., and Frank C. Armstrong. Optical Calcite Deposits in Park and Sweet Grass Counties, Montana. United States Department of the Interior, Geological Survey, 1958.