Fraenkel, Jack R. <br/><br/>
How to design and evaluate research in education / 
Jack R. Fraenkel and Norman E. Wallen. 
 - 5th ed. 
 - New York:  McGraw-Hill,  2003. 
 - xxviii, 623 p. 
<br/><br/>Includes index. 
<br/><br/>
<br/><br/><label>ISBN: </label>0071230270 
<br/><br/><label>Dewey Class. No.: </label>Gen Ref 001.422  / F41 2003 c.1