Ducoff Louis J <br/><br/>
"Human resources of central America, Panama and Mexico, 1950-1980, in relation to some aspects of economic development" 

 - New  York United Nations Publication      1960 
 - "viii,155p"  cm. 
 - "United Nations , Economic Commission for Latin America" .
<br/><br/><label>Standard No.: </label>17672 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>"Y:50aX:77.750j.77.N80<--N50, K0/UN"