Cita APA (7th ed.)

Shell, G. R. (2006). Bargaining for Advantage (2nd.). Penguin.

Cita Chicago (17th ed.)

Shell, G. Richard. Bargaining for Advantage. 2nd. New York: Penguin, 2006.

Cita MLA (9th ed.)

Shell, G. Richard. Bargaining for Advantage. 2nd. Penguin, 2006.