Lebergott, Stanley <br/><br/>
Manpower in economic growth :  the American record since 1800 / 
Stanley Lebergott 
 - New York :  McGraw-Hill,  1964 
 - xii, 561 p. :  diagrs., tables. ;  24 cm. 
<br/><br/>Bibliographical footnotes. 
<br/><br/><label>LCCN: </label>62-014865 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Working class--United States--History<br/>Labor economics