Beck, Robert C.  1931- <br/><br/>
Motivation :  theories and principles / 
Robert C. Beck. 
 - Englewood Cliffs, N.J. :  Prentice-Hall,  c1978. 
 - x, 470 p. :  ill. ;  24 cm. 
<br/><br/> Includes indexes. 
<br/><br/>Bibliography: p. 419-459. 
<br/><br/><label>ISBN: </label>0136039022 :   
<br/><br/><label>Subjects--Topical Terms: </label><br/>Motivation (Psychology)
<br/><br/><label>Dewey Class. No.: </label>153.8