Yin, Robert K. <br/><br/>
Case study research:   design and methods / 
Robert K. Yin 
 - 4th ed. 
 - Thousand Oaks, Calif. :   Sage Publications  2009 
 - xiv, 219 p.  ;  22 cm. 
<br/><br/><label>ISBN: </label>1412960991 9781412960991  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Case method<br/>Social sciences<br/>Social sciences -- Research -- Methodology
<br/><br/><label>LC Class. No.: </label>H62   / .Y56 2009