APA (7th ed.) Citation

Gettell, R. G. (1922). Introduction to political science (Rev. ed.). Ginn and company.

Chicago Style (17th ed.) Citation

Gettell, Raymond Garfield. Introduction to Political Science. Rev. ed. Boston, New York [etc.]: Ginn and company, 1922.

MLA (9th ed.) Citation

Gettell, Raymond Garfield. Introduction to Political Science. Rev. ed. Ginn and company, 1922.