COHEN, Louis, MANION, Lawrence and MORRISON, Keith <br/><br/>
Research Methods in Education 

 - Sixth Edition 
 - London  Routledge  2007 
 - xi, 638p.  ill.  24 cm. 
<br/><br/> Includes index and bibliography 
<br/><br/><label>ISBN: </label>9780415368780 
<br/><br/><label>Subjects--Topical Terms: </label>
<br/><br/><label>Dewey Class. No.: </label>001.42