Petri, Herbert L <br/><br/>
Motivational  : theory and research 
Herbert L Petri 
 - 2nd 
 - California:  Wadsworth,  1986. 
 -  xvi,432p. 
<br/><br/> HB 
<br/><br/>Includes bibliography and index 
<br/><br/><br/>eng 
<br/><br/><label>ISBN: </label>0534053823 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Theory  and research
<br/><br/><label>Dewey Class. No.: </label>153.8  / PEM