Mayer, R. (2009). How to win any negotiation: Without raising your voice, losing your cool, or coming to blows. Franklin Lakes, NJ: Advantage Quest.
Παραπομπή Chicago StyleMayer, Robert. How to Win Any Negotiation: Without Raising Your Voice, Losing Your Cool, or Coming to Blows. Franklin Lakes, NJ: Advantage Quest, 2009.
Παραπομπή MLAMayer, Robert. How to Win Any Negotiation: Without Raising Your Voice, Losing Your Cool, or Coming to Blows. Franklin Lakes, NJ: Advantage Quest, 2009.
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