Cohen, Louis,  1928- <br/><br/>
Research methods in education / 
Louis Cohen, Lawrence Manion and Keith Morrison. 
 - Eighth edition. 
 - xxvii, 916 pages :  illustrations ;  25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9781138209862  RM581.31 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education--Research--Great Britain.