Oliver, D. (2011). How to negotiate effectively (3rd ed.). Kogan Page.
Cita Chicago (17th ed.)Oliver, David. How to Negotiate Effectively. 3rd ed. London ; Philadelphia: Kogan Page, 2011.
Cita MLA (8th ed.)Oliver, David. How to Negotiate Effectively. 3rd ed. Kogan Page, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.