Smithson, Michael <br/><br/>
Fuzzy set theory :  applications in the social sciences / 
Michael Smithson, Jay Verkuilen 
 - Thousand Oaks :  Sage Pub.,  2006 
 - 97 p. :  ill. ;  22 cm. 
 - Quantitative applications in the social sciences  no. 07-147 .
<br/><br/><label>ISBN: </label>076192986X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Mathematics<br/>Fuzzy sets