Lebergott Stanley <br/><br/>
Manpower in economic growth : The American record since 1800 

 - New York, USA  McGraw Hill Book Company  1964 
 - xii,561p. 
 - Economics hanbook .
<br/><br/><label>Source: </label>Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics