Van Dalen, Deobold B.,  1911- <br/><br/>
Understanding educational research:  an introduction 
[by] Deobold B. Van Dalen. 
 - 3d ed. 
 - New York,  McGraw-Hill  [1973] 
 - ix, 532 p.  illus.  24 cm. 
<br/><br/>Bibliography: p. 507-515. 
<br/><br/><label>ISBN: </label>0070668825 
<br/><br/><label>LCCN: </label>72005470  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education--Research.
<br/><br/><label>LC Class. No.: </label>LB1028  / .V3 1973 
<br/><br/><label>Dewey Class. No.: </label>370/.78