Etheridge, Elizabeth W. <br/><br/>
The butterfly caste :  a social history of pellagra in the South / 
Elizabeth W. Etheridge 
 - Westport, Conn. :  Greenwood Publishing Company,  1972 
 - ix, 278 p. :  ill. ;  22 cm. 
 - Contributions in American history ;  no. 17 .
<br/><br/><label>ISBN: </label>0837162569 
<br/><br/><label>LCCN: </label>70-176431 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pellagra--History<br/>Malnutrition
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Southern States--Social conditions