Ducoff, Louis Joseph <br/><br/>
Human resources of Central America, Panama and Mexico, 1950-1980, in relation to some aspects of economic development / 
Louis Joseph Ducoff 
 - New York :  UN ,  1960 
 - viii, 155 p. :  ill. ;  30 cm.  
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economic development<br/>Labour and manpower<br/>Labour supply<br/>Population
<br/><br/><label>Dewey Class. No.: </label>338.8905  / ECLA