Παραπομπή APA

Lum, G. (2005). The negotiation fielbook: Simple strategies to help you negotiate everything. New York: McGraw-Hill.

Παραπομπή Chicago Style

Lum, Grande. The Negotiation Fielbook: Simple Strategies to Help You Negotiate Everything. New York: McGraw-Hill, 2005.

Παραπομπή MLA

Lum, Grande. The Negotiation Fielbook: Simple Strategies to Help You Negotiate Everything. New York: McGraw-Hill, 2005.

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