Lewicki, R. J. (2007). Essentials of NegotiationRoy J. Lewicki, Bruce Barry and David M. Sauders. McGraw-Hill.
Chicago-viite (17. p.)Lewicki, Roy J. Essentials of NegotiationRoy J. Lewicki, Bruce Barry and David M. Sauders. McGraw-Hill, 2007.
MLA-viite (8. p.)Lewicki, Roy J. Essentials of NegotiationRoy J. Lewicki, Bruce Barry and David M. Sauders. McGraw-Hill, 2007.
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