Hardy, Kenneth. <br/><br/>
Readings on social stratification 
Melvin M. Tumin. 
 - Upper Saddle River, NJ ;  London  Pearson/Prentice Hall  c2005. 
 - xv, 480, 6 p.  ill. (some col.)  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0139067280 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebras, Linear.<br/>Engineering mathematics.<br/>Science--Mathematics.