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

 - LoNew Delhion  Sage  1986 
 - 160p, 22cm 
<br/><br/><label>ISBN: </label>008039220571 
<br/><br/><label>Dewey Class. No.: </label>300.722,  / D, Yin