MLA

Ogg, Frederic Austin, and Harold Zink. Modern Foreign Governments. New York: Macmillan Co., 1949.

APA

Ogg, F. Austin, & Zink, H. (1949). Modern foreign governments. New York: Macmillan Co.

Chicago

Ogg, Frederic Austin, and Harold Zink. Modern Foreign Governments. New York: Macmillan Co., 1949.