Gay, L. R. <br/><br/>
Educational research :  competencies for analysis and applications / 
L.R. Gay, Geoffrey E. Mills, Peter W. Airasian. 
 - 9th ed. 
 - Upper Saddle River, N.J. :  Merrill/Pearson,  c2009. 
 - xvi, 618 p. :  ill. ;  27 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0132338777 9780132338776 
<br/><br/><label>LCCN: </label>2008001686 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education--Research.
<br/><br/><label>LC Class. No.: </label>LB1028  / .G37 2009 
<br/><br/><label>Dewey Class. No.: </label>370.7/2