Mitzel, Harold E. <br/><br/>
Encyclopedia of Educational research .-5th ed .-0-02-900450-0 

 - THE  Free Press, New York  1982 
 - xxiii,517 
<br/><br/><label>ISBN: </label>0-02-900450-0 
<br/><br/><label>Dewey Class. No.: </label>R370.7803 E.E.R.