Cohen, Louis <br/><br/>
Research methods in education / 
Louis Cohen, Lawrence Manion, and Keith Morrison ; with contributions from Richard Bell ... [et al.]. 
 - 7th ed. 
 - xxii, 758 p. :  ill. (chiefly col.)  
<br/><br/> Includes bibliographical references and index. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780415583350 (hard cover) 9780415583367 (soft cover) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education--Research
<br/><br/><label>LC Class. No.: </label>LB 1028 COH 2011