Beck Robert C <br/><br/>
Motivation theories & principles 
robert C Beck 
 - Dehli  pearson Education  c.2003 
 - xvi, 477 p. :  ill. ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>8129700875 
<br/><br/><label>Subjects--Topical Terms: </label>--General
<br/><br/><label>Dewey Class. No.: </label>153.8 BEC