Roy J Lewicki. (2001). Essentials of negotiation. Boston, MA: McGraw-Hill.
Trích dẫn kiểu ChicagoRoy J Lewicki. Essentials of Negotiation. Boston, MA: McGraw-Hill, 2001.
MLA citiranjeRoy J Lewicki. Essentials of Negotiation. Boston, MA: McGraw-Hill, 2001.
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