Cohen, Louis,  1928- <br/><br/>
Research methods in education / 
Louis Cohen, Lawrence Manion and Keith Morrison ; with contributions from Richard Bell ... [et al.]. 
 - 7th ed. 
 - London ;  New York :  Routledge,  2011. 
 - xxii, 758 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780415583367 (pbk.) 9780415583350 (hbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education--Research--Great Britain.
<br/><br/><label>Dewey Class. No.: </label>370.72  / COH 2011