Columbia subject headings:
Export processing zones--El Salvador.
Offshore assembly industry--El Salvador.
Harvard subject headings:
Offshore assembly industry--El Salvador--La Libertad (Department)--History.
Offshore assembly industry--El Salvador--La Libertad (Department)--Social aspects.
Offshore assembly industry--El Salvador--La Paz (Department)--History.
Offshore assembly industry--El Salvador--La Paz (Department)--Social aspects.
Offshore assembly industry--El Salvador--Usulután (Department)--History.
Offshore assembly industry--El Salvador--Usulután (Department)--Social aspects.
Princeton subject headings:
Export processing zones--El Salvador.
Offshore assembly industry--El Salvador.