Educational Research/  competencies for analysis and applications 
Gay,Lorraine R. 
 - 10 
 - Boston:  Pearson,  2011-10-07. 
 - 648 
<br/><br/><label>ISBN: </label>0132613174 
<br/><br/><label>Dewey Class. No.: </label>370.72  / GAY/E