Gerring, John <br/><br/>
Case study reserch: principles and practice. 

 - NewYork  Cambridge  2007 
 - 265p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Case study-Research<br/>Research-Case Study<br/>Reserch methodology<br/>Reserch methodology,Research-Case Study,Case study-Research,
<br/><br/><label>Dewey Class. No.: </label>GER  / 658.0072