Yin,Robert K. <br/><br/>
Case study research:design and methods 
Robert K. Yin 
 - 4th ed. 
 - London  SAGE  2009 
 - xiv,219p.:  ill.;  24cm. 
 - Applied Social Research Methods Series .
<br/><br/> Include bibliographical references and index 
<br/><br/><label>ISBN: </label>9781412960991 
<br/><br/><label>Subjects--Topical Terms: </label>
<br/><br/><label>Dewey Class. No.: </label>300.72YIN