VOCKELL EDWARD L. <br/><br/>
EDUCATIONAL RESEARCH 

 - 2ND 
 - NEW DELHI  PRENTICE-HALL.  1998 
 - 489 
<br/><br/><label>ISBN: </label>NULL 
<br/><br/><label>Subjects--Topical Terms: </label><br/>NULL
<br/><br/><label>Dewey Class. No.: </label>370.78 VOC