How to design and evaluate research in education / 
Fraenkel, Jack R.; Wallen, Norman E. 
 - 6th ed. 
 - New York :  McGraw-Hill,  2006. 
 - xxvii, v.p. : ill.; 25 cm. 
<br/><br/>Includes glosarry and index 
<br/><br/><label>ISBN: </label>9780071260992 
<br/><br/><label>Dewey Class. No.: </label>C 001.4 F799 2006