Van Dalen, Deobold B. <br/><br/>
Understanding educational research :  an introduction / 
Deobold B. Van Dalen 
 - 4th ed. 
 - New York :  McGraw-Hill ,  1979 
 - xii, 547p. :  ill. ;  24 cm. 
<br/><br/> Includes indexes. 
<br/><br/>Bibliography: p. 531-537. 
<br/><br/><label>ISBN: </label>0070668833 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education--Research
<br/><br/><label>Dewey Class. No.: </label>370.78  / VAN