Encyclopedia of educational research 
edited by Marvin C.Alkin 
 - 6th ed. 
 - New York  Macmillan  1992 
 - v.;  26cm. 
<br/><br/><label>ISBN: </label>0029004314 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education<br/>Research<br/>Encyclopaedias-educational 
<br/><br/><label>Dewey Class. No.: </label>370.7803  / ENC