Gay L R <br/><br/>
Educational research :  competencies for analysis and applications / 
L.R. Gay, Geoffrey E. Mills, Peter Airasian. 
 - 8th ed. 
 - Upper Saddle River, NJ :  Pearson Merrill Prentice Hall ,  2006. 
 - xix, 614 p. ;  27 cm. 
<br/><br/> Previous ed.: 2003 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0131185349 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education--Research
<br/><br/><label>LC Class. No.: </label>LB1028