APA引文

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引文

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

警告：這些引文格式不一定是100％准確.