Cita APA (7a ed.)
Key, V. (1958). Politics, parties, and pressure groups. Thomas Y. Crowell.
Cita estilo Chicago (17a ed.)
Key, V.O. Politics, Parties, and Pressure Groups. Nueva York, EUA: Thomas Y. Crowell, 1958.
Cita MLA (9a ed.)
Key, V.O. Politics, Parties, and Pressure Groups. Thomas Y. Crowell, 1958.
Precaución: Estas citas no son 100% exactas.