Cofer, C.N. & Appley, M.H. <br/><br/>
Motivation : Theory and research 

 - Wiley Eastern LImited, New Delhi  1964 
 - 958,pp 
<br/><br/><label>ISBN: </label>0 85226 123 3 
<br/><br/><label>Dewey Class. No.: </label>159.4 Cof/App