Beck, Robert C. <br/><br/>
Motivation : theories and principles/4th 
By; Robert C. Beck 
 -   Prentice Hall  2000 
 - xvi, 477 pages, 23 cm 
<br/><br/> Includes bibliographic references and index 
<br/><br/><label>ISBN: </label>0-13-011292-5 
<br/><br/><label>Dewey Class. No.: </label>153.8 B38 2000