Petri, Herbert L. <br/><br/>
Motivation :   theory, research and applications /  
Herbert L. Petri. 
 - 3rd ed. 
 - Belmont, Calif. :   Wadswort,   c1991.  
 - xiv, 434p. : ill. ; 24 cm.           
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0534143644 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Motivation (Psychology)
<br/><br/><label>LC Class. No.: </label>BF503   / P44 1991