APA (7th ed.) Citation

Gettell, R. G. (1949). Political science (Rev. ed.). Ginn.

Chicago Style (17th ed.) Citation

Gettell, Raymond Garfield. Political Science. Rev. ed. Boston: Ginn, 1949.

MLA (9th ed.) Citation

Gettell, Raymond Garfield. Political Science. Rev. ed. Ginn, 1949.