Johnson, Burke. <br/><br/>
Educational research :  quantitative, qualitative, and mixed approaches / 
Burke Johnson, Larry Christensen. 
 - 4th ed. 
 - Thousand Oaks, Calif. :  SAGE Publications,  c2012. 
 - xxvi, 621 p. :  ill. ;  27 cm. 
<br/><br/>Includes bibliographical references  (p. 589-608) and index. 
<br/><br/><label>ISBN: </label>9781412978286 (cloth) 
<br/><br/><label>LCCN: </label>2010032171 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education--Research.
<br/><br/><label>LC Class. No.: </label>LB 1028  / .J63 2012 
<br/><br/><label>Dewey Class. No.: </label>370.7/2