Cita APA (7th ed.)

Lewicki, R. J. B. (2007). Essnetials of Negotiation (4th.). McGraw Hill.

Cita Chicago (17th ed.)

Lewicki, Roy J; Barry. Essnetials of Negotiation. 4th. New York: McGraw Hill, 2007.

Cita MLA (9th ed.)

Lewicki, Roy J; Barry. Essnetials of Negotiation. 4th. McGraw Hill, 2007.