Best, John W.  Kahn, James V. <br/><br/>
Research in education 

 - 6th 
 - New Delhi  Prentice-Hall  1989 
 - 388p.  ix 
<br/><br/> Book 
<br/><br/><br/>Eng. 
<br/><br/><label>ISBN: </label>0876926073 
<br/><br/><label>National Library of Medicine Call No.: </label>WA 20.5