APA-Zitierstil (7. Ausg.)

Key, V. O. (1964). Politics, parties, and pressure groups (5th ed.). Crowell.

Chicago-Zitierstil (17. Ausg.)

Key, Valdimer Orlando. Politics, Parties, and Pressure Groups. 5th ed. New York: Crowell, 1964.

MLA-Zitierstil (9. Ausg.)

Key, Valdimer Orlando. Politics, Parties, and Pressure Groups. 5th ed. Crowell, 1964.