Lewicki Roy J. <br/><br/>
Essential of Negotiation: 

 - 6th ed. 
 - USA:  Mcgraw- Hill,  2016. 
 - xv 
<br/><br/>Includes Bibliographical references and index. 
<br/><br/><label>ISBN: </label>9789814577274 
<br/><br/><label>LC Class. No.: </label>HD58.6lew