Ducoff, Louis J.    1909- <br/><br/>
Human resources of Central America, Panama, and Mexico, 1950-1980, i n relation to some aspects of economic development /  
L.J. Ducoff. 
 - New York :    United Nations Economic Commission for Latin America,    1960. 
 - viii, 155 p. :    ill., maps, diagrs. ;    27 cm. 
<br/><br/>Bibliographical footnotes. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Labor supply -- Central America.
<br/><br/><label>Subjects--Geographic Terms: </label><br/> Central America -- Population.<br/> Central America -- Economic conditions.<br/> Latin America -- Economic conditions