Cohen, Louis,  1928- <br/><br/>
Research methods in education / 
Louis Cohen, Lawrence Manion, and Keith Morrison 
 - 6th ed. 
 - London :  Routledge,  2007 
 - xviii, 638 p. :  25 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0415374103 (hbk.) 0415368782 (pbk.) 9780415374101 (hbk.)  RM560.88 9780415368780 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education--Research<br/>Education--Research--United Kingdom