Yin, Robert K. <br/><br/>
Case study research :  design and methods / 
Robert K. Yin ; foreword by Donald T. Campbell 
 - Beverly Hills :  SAGE Publications,  1984 
 - 159 p. :  ill. ;  22 cm. 
 - Applied social research methods series ; v.5 .
<br/><br/>Bibliography : p. 155-160 
<br/><br/><label>ISBN: </label>0803920571 
<br/><br/><label>LCCN: </label>84-009933 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Case method<br/>Social sciences--Research