APA

Gettell R. G., Wanlass L. C. 1., . (1953). History of political tought. New York: Appleton-Century-Crofts.

Chicago

Gettell Raymong Garfield, Wanlass Lawrence C 1925, . 1953. History of political tought. New York: Appleton-Century-Crofts.

Harvard

Gettell R. G., Wanlass L. C. 1., . (1953). History of political tought. New York: Appleton-Century-Crofts.

MLA

Gettell Raymong Garfield, Wanlass Lawrence C 1925, . History of political tought. New York: Appleton-Century-Crofts. 1953.