Punch, Keith F. <br/><br/>
Introduction to research methods in education / 
Keith F Punch, Alis Oancea. 
 - 2nd edition. 
 - London:  Sage Publication Limited,  2014. 
 - xx, 421 pages:  illustrations;  23 cm. 
<br/><br/> Includes bibliographical ref. and index 
<br/><br/><label>ISBN: </label>9781446260746 9781446260739 
<br/><br/><label>LCCN: </label>2014934589 
<br/><br/><label>LC Class. No.: </label>LB1028  / PUN 2014