APA (7th ed.) Citation

Freeman, O. W. (1945). Physiographic divisions of the Columbia intermontane province. [n.p..

Chicago Style (17th ed.) Citation

Freeman, Otis W. Physiographic Divisions of the Columbia Intermontane Province. [n.p., 1945.

MLA (8th ed.) Citation

Freeman, Otis W. Physiographic Divisions of the Columbia Intermontane Province. [n.p., 1945.

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