APA način citiranja (7. izdanje)

Key, V. O. (1958). Politics, parties and pressure groups (4th ed.). Crowell.

Čikaški stil citiranja (17. izdanje)

Key, Valdimer Orlando. Politics, Parties and Pressure Groups. 4th ed. New York: Crowell, 1958.

MLA način citiranja (9. izdanje)

Key, Valdimer Orlando. Politics, Parties and Pressure Groups. 4th ed. Crowell, 1958.