Trends in the American economy in the nineteenth century, by the Conference on Research in Income and Wealth . 

 - Princeton :  University Press ,  1960 
 - xi, 780p. ;  21 cm. 
 - Studies in Income & Wealth .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economic history--United States
<br/><br/><label>Dewey Class. No.: </label>330.973  / NBER