Vockell Edward L <br/><br/>
Educational research 

 - New York, USA  Macmillan Publishing   1983 
 - 392p. 
<br/><br/><label>ISBN: </label>0-02-423070-7 
<br/><br/><label>Source: </label>Books to be hide in OPAC 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational Research