Essentials of negotiation / Roy J. Lewicki, David M. Saunders, Bruce Barry. Lewicki, Roy J. Barry, Bruce, 1958- Saunders, David M. Negotiation in business. Negotiation. HD58.6 .L487 2011 658.4052 22 LEN Includes bibliographical references (p. 261-279) and index. New York : McGraw-Hill/Irwin, c2011. c2011. 2011 Text xiv, 290 p. : eng