Beck Robert C <br/><br/>
Motivaiton   Theories and principles    

 - New Jersey   Prentice Hall `USA         1978 
 - x, 470p  cm. 
<br/><br/> Bibliography: P 419-60 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology
<br/><br/><label>Dewey Class. No.: </label>S:5, L8