TY  - BOOK
AU  - Ducoff L J
ED  - UN. Economic Commission for Latin America
TI  - Human resources of central America, Panama and Mexico 1950 - 1980: in relation to some aspects of economic development
U1  - 304.609728 
PY  - 1960///
CY  - New York
PB  - UN
KW  - America
KW  - Mexico
KW  - Panama
KW  - Population
ER  -