Hopkins, Mark Myron. <br/><br/>
Physics and slavery : the relative cost of calories for slave infants and their mothers / 
Mark Myron Hopkins and Nicholas Scott Cardell 
 - 3 pages ;  28 cm. 
 - The Rand paper series;  P-6415 .
 - The Rand paper series;  P-6415 .
<br/><br/>Includes bibliographical references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Slavery--Economic aspects--United States.<br/>Slaves--United States<br/>Infants--Nutrition.<br/>Breastfeeding.<br/>Slavery--Econometric models--United States