APA (7th ed.) Citation

Thom, E. M., & Geological Survey (U.S.). (1935). Bibliography of North American geology, 1933 and 1934. U.S. G.P.O..

Chicago Style (17th ed.) Citation

Thom, Emma Mertins., and Geological Survey (U.S.). Bibliography of North American Geology, 1933 and 1934. Washington, D.C.: U.S. G.P.O., 1935.

MLA (8th ed.) Citation

Thom, Emma Mertins., and Geological Survey (U.S.). Bibliography of North American Geology, 1933 and 1934. U.S. G.P.O., 1935.