Yin, Robert K. <br/><br/>
Case study research :  Design and methods. 

 - 5th ed. 
 - London :  Sag Publications, 
 - xxviii, 282 p.  23 cm. 
<br/><br/>Includes Bibliographical and index. 
<br/><br/><label>ISBN: </label>9781452242569 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social science.
<br/><br/><label>Dewey Class. No.: </label>300.72 YIN