APA (7th ed.) Citation

Geological Survey (U.S.) & Campbell, M. R. (1911). Contributions to economic geology (short papers and preliminary reports) 1911: Part II -- Mineral fuels. Supt. of Docs., G.P.O..

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), and Marius R. 1858-1940 Campbell. Contributions to Economic Geology (short Papers and Preliminary Reports) 1911: Part II -- Mineral Fuels. Washington, [D.C.]: Supt. of Docs., G.P.O., 1911.

MLA (8th ed.) Citation

Geological Survey (U.S.), and Marius R. 1858-1940 Campbell. Contributions to Economic Geology (short Papers and Preliminary Reports) 1911: Part II -- Mineral Fuels. Supt. of Docs., G.P.O., 1911.