APA (7th ed.) Citation

Roby, R. N., & Robertson, A. F. (1949). Investigation of Whiteware clay deposit, Fergus County, Mont. U.S. Department of the Interior, Bureau of Mines.

Chicago Style (17th ed.) Citation

Roby, R. N., and Almon F. Robertson. Investigation of Whiteware Clay Deposit, Fergus County, Mont. [Washington, D.C.]: U.S. Department of the Interior, Bureau of Mines, 1949.

MLA (9th ed.) Citation

Roby, R. N., and Almon F. Robertson. Investigation of Whiteware Clay Deposit, Fergus County, Mont. U.S. Department of the Interior, Bureau of Mines, 1949.