What is a case?: exploring the foundations of social inquiry 
edited by Charles C. Ragin and Howards S. Becker 
 - Cambridge  Cambridge University Press  1993 
 - 242p. 
<br/><br/><label>ISBN: </label>0521421888 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sociology - Research - Methodology
<br/><br/><label>Dewey Class. No.: </label>Bo84 W556