Somekh, B <br/><br/>
Thories and methods in social research 
by B Somekh 
 - New Delhi  Sage Pub.  2012 
 - 344 p. 
<br/><br/><label>Source: </label>Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>C Lewin