Beck, Robert C. <br/><br/>
Motivation Theories And Principles 

 -  Pearson Prentice Hall  2004 
 - 23 CM 
<br/><br/>5th ed. 
<br/><br/><label>ISBN: </label>013111445X 
<br/><br/><label>Dewey Class. No.: </label>153.8 BEC 2004 C.6