APA (7th ed.) Citation

United States. Bureau of Mines. (1936). Camp, L. W., Company. Mining and grinding methods and costs at L. W. Camp Co. shale pit, Akron, Ohio. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Mines. Camp, L. W., Company. Mining and Grinding Methods and Costs at L. W. Camp Co. Shale Pit, Akron, Ohio. [Washington]: [s.n.], 1936.

MLA (9th ed.) Citation

United States. Bureau of Mines. Camp, L. W., Company. Mining and Grinding Methods and Costs at L. W. Camp Co. Shale Pit, Akron, Ohio. [s.n.], 1936.