Beck, Robert C. <br/><br/>
Motivation:  theories and principles / 

 - 2nd ed. 
 - Englewood Cliffs:  Prentice Hall,  1983. 
 - xiv, 482 p., 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Motivation.
<br/><br/><label>Dewey Class. No.: </label>153.8