APA (7th ed.) Citation

Rubey, W. W. (1931). Lithologic studies of fine-grained Upper Cretaceous sedimentary rocks of the Black Hills region. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Rubey, William Walden. Lithologic Studies of Fine-grained Upper Cretaceous Sedimentary Rocks of the Black Hills Region. Washington: Department of the Interior, U.S. Geological Survey, 1931.

MLA (9th ed.) Citation

Rubey, William Walden. Lithologic Studies of Fine-grained Upper Cretaceous Sedimentary Rocks of the Black Hills Region. Department of the Interior, U.S. Geological Survey, 1931.