Cohen, Louis. <br/><br/>
Research Methods in Education. 
by Louis Cohen, Lawrence Manion and Keith Morrison. 
 - 7th. ed . - 
 - New York :  Routledge,  2013. 
 - xxii,758p. ; 24 cm. 
<br/><br/><label>ISBN: </label>9780415583367 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research Methods.<br/>Social Research.<br/>Planning Educational Research.<br/>Data Collection.<br/>Visual Media in Educational Research.
<br/><br/><label>Dewey Class. No.: </label>001.42   / COHL