Charles, C. M. <br/><br/>
Introduction to educational research / 
C.M. Charles, Craig A. Mertler. 
 - 4th ed. 
 - Boston :  Allyn and Bacon,  2002. 
 - xxiii, 392 p. :  ill ;  25 cm. 
<br/><br/>Includes bibliographical references and indexes. 
<br/><br/>
<br/><br/><label>ISBN: </label>0321081757 (alk. paper) 
<br/><br/><label>LCCN: </label>2001022425 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education--Research.
<br/><br/><label>Dewey Class. No.: </label>370/.7/2