Gerring, John <br/><br/>
Case study research  Principles and practices 

 - New York  Cambridge University Press  2007 
 - 265 
<br/><br/><label>ISBN: </label>978-0521-676564 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>
<br/><br/><label>Dewey Class. No.: </label>001.42