Columbia subject headings:
Manpower policy--Central America--Mathematical models.
Manufactures--Central America--Employees--Supply and demand--Mathematical models.
Mercado Común Centroamericano.
Harvard subject headings:
Central America--Economic integration.
Industries--Central America.
Labor supply--Central America.
Manpower policy--Central America--Mathematical models.
Manufacturing industries--Central America--Employees--Supply and demand--Mathematical models.
Mercado Común Centroamericano.
Princeton subject headings:
Manpower policy--Central America--Mathematical models.
Manufacturing industries--Central America--Employees--Supply and demand--Mathematical models.
Mercado Común Centroamericano.