APA (7th ed.) Citation

Gettell, R. G. (1933). Political science. Ginn and company.

Chicago Style (17th ed.) Citation

Gettell, Raymond Garfield. Political Science. [Boston]: Ginn and company, 1933.

MLA (9th ed.) Citation

Gettell, Raymond Garfield. Political Science. Ginn and company, 1933.