Yin, Robert K. <br/><br/>
Case study research :  design and methods / 
Robert K. Yin. 
 - 4th ed. 
 - Los Angeles:   Sage,   2009.  
 - xiv, 219 p. :  tables ;  23 cm. 
 -  5 .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9781412960991 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Research--Methodology
<br/><br/><label>Dewey Class. No.: </label>300.722