Lewicki J. Roy, Barry Bruce and Saunders M. David, . (2007). Essentials of Negotiation. New York: McGraw-Hill.
Lewicki J. Roy, Barry Bruce and Saunders M. David, . 2007. Essentials of Negotiation. New York: McGraw-Hill.
Lewicki J. Roy, Barry Bruce and Saunders M. David, . Essentials of Negotiation. New York: McGraw-Hill. 2007.