Ragin, Charles C. <br/><br/>
Constructing social research  the unity and diversity of method 

 - 2nd 
 - London  Sage Publication Ltd  2011 
 - xi, 234p. 
<br/><br/><label>ISBN: </label>9781412960182 
<br/><br/><label>Subjects--Topical Terms: </label><br/>SOCIAL SCIENCES-RESEARCH
<br/><br/><label>Dewey Class. No.: </label>300.72  / RAG