McConnell, John W. <br/><br/>
The evolution of social classes / 
by John W. McConnell 
 - New York :  Russell & Russell,  1973 
 - 228p. :  24 cm. 
<br/><br/><label>LCCN: </label>72-86977 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social classes--New Haven<br/>Labor and laboring classes--New Haven
<br/><br/><label>Subjects--Geographic Terms: </label><br/>New Haven--Social conditions