Fraenkel, Jack R <br/><br/>
How to design and evaluate research in education 
Wallen, Norman E 
 - New York  McGraw-Hill Higher education  2008 
 - xxviii, 641 Pages  Colour Illustrations  26 cm 
<br/><br/> Adult 
<br/><br/><label>ISBN: </label>9780071287920 
<br/><br/><label>Dewey Class. No.: </label>370.72 FRAE