HAROLD E MITZEL <br/><br/>
ENCYCLOPEDIA OF EDUCATIONAL RESEARCH 

 - 5 TH 
 - LONDON  THE FREE PRESS  1969 
 -  519-1058 P 
<br/><br/><label>ISBN: </label>0-02-900450-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>
<br/><br/><label>Dewey Class. No.: </label>370.7/ENC/V.2