APA (7th ed.) Citation

Thom, E. M. (1937). Bibliography of North American geology for 1935 and 1936. U.S. G.P.O..

Chicago Style (17th ed.) Citation

Thom, Emma Mertins. Bibliography of North American Geology for 1935 and 1936. Washington: U.S. G.P.O., 1937.

MLA (8th ed.) Citation

Thom, Emma Mertins. Bibliography of North American Geology for 1935 and 1936. U.S. G.P.O., 1937.