Yin, Robert K. <br/><br/>
Case study research : design and methods / 
Robert K. Yin 
 - 4th ed. 
 -  Sage Publications  2009 
<br/><br/>18389 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Case method<br/>Social sciences - Research - Methodology
<br/><br/><label>LC Class. No.: </label>H62  / Yin