Johnson, C. O. (1955). American Government: National, State, and local (2d. ed.). Crowell.
Cita Chicago Style (17a ed.)Johnson, Claudius O. American Government: National, State, and Local. 2d. ed. New York: Crowell, 1955.
Cita MLA (8a ed.)Johnson, Claudius O. American Government: National, State, and Local. 2d. ed. Crowell, 1955.
Precaución: Estas citas no son 100% exactas.