Ogg, F. A. 1., & Ray, P. O. (1951). Introduction to American government (10th ed.). Appleton-Century-Crofts.
Chicago (17e ed.) BronvermeldingOgg, Frederick Austin 1878, en Perley Orman Ray. Introduction to American Government. 10th ed. New York: Appleton-Century-Crofts, 1951.
MLA (9e ed.) BronvermeldingOgg, Frederick Austin 1878, en Perley Orman Ray. Introduction to American Government. 10th ed. Appleton-Century-Crofts, 1951.
Let op: Deze citaties zijn niet altijd 100% accuraat.