Dalen,Deobold B.Van <br/><br/>
Understanding Educational Research : An Introduction 

 - 4th Ed.; 
 - New Delhi:  McGraw-Hill ,  1979. 
 - xii,547p.;  24 cm 
<br/><br/><label>ISBN: </label>0070668833 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational Research
<br/><br/><label>Dewey Class. No.: </label>370.78  / DAL