Cita APA (7th ed.)

GETTELL, R. G. (1950). Political science . The World Press.

Cita Chicago (17th ed.)

GETTELL, Raymond Garfield. Political Science . Calcutta: The World Press, 1950.

Cita MLA (9th ed.)

GETTELL, Raymond Garfield. Political Science . The World Press, 1950.