Cohen, Louis   <br/><br/>
Research Methods in Education / 
Louis Cohen and Lawrence Manion   
 - 8 ed. 
 - New York :  Routledge,  c2018 
 - 916p. :  22 cm 
<br/><br/>Bibliography: p.855-906<br/>Index: p.907-916 
<br/><br/><label>ISBN: </label>9781138209861 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research   Research Methods
<br/><br/><label>Dewey Class. No.: </label>001.42 C678r