Cohen, Louis, <br/><br/>
Research methods in education / 
Louis Cohen, Lawrence Manion and Keith Morrison. 
 - 6th ed. 
 - London :  Routledge,  2007. 
 - xviii, 638 p. :  ill. ;  26 cm. 
<br/><br/>Includes bibliographical references (p. [593]-632) and index. 
<br/><br/><br/>eng. 
<br/><br/><label>ISBN: </label>9780415368780  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education<br/>Education--Great Britain.
<br/><br/><label>Dewey Class. No.: </label>370.72 COH