APA
Lewicki R. J. [. a., . (2003). Essentials of negotiation. McGraw - Hill, Boston: .
Chicago
Lewicki Roy J [et al], . 2003. Essentials of negotiation. McGraw - Hill, Boston: .
Harvard
Lewicki R. J. [. a., . (2003). Essentials of negotiation. McGraw - Hill, Boston: .
MLA
Lewicki Roy J [et al], . Essentials of negotiation. McGraw - Hill, Boston: . 2003.