APA Citation

Thom, E. M. (1950). Bibliography of North American geology 1948. Washington, [D.C.]: U.S. G.P.O..

Chicago Style Citation

Thom, Emma Mertins. Bibliography of North American Geology 1948. Washington, [D.C.]: U.S. G.P.O., 1950.

MLA Citation

Thom, Emma Mertins. Bibliography of North American Geology 1948. Washington, [D.C.]: U.S. G.P.O., 1950.

Warning: These citations may not always be 100% accurate.