Columbia subject headings:
Harbors--Government ownership--Caribbean Area.
Harbors--Government ownership--Latin America.
Industrial relations--Caribbean Area.
Industrial relations--Latin America.
Labor unions--Caribbean Area.
Labor unions--Latin America.
Stevedores--Caribbean Area.
Stevedores--Latin America.
Transport workers--Caribbean Area.
Transport workers--Latin America.
Harvard subject headings:
Princeton subject headings:
Harbors--Government ownership--Caribbean Area.
Harbors--Government ownership--Latin America.
Industrial relations--Caribbean Area.
Industrial relations--Latin America.
Stevedores--Caribbean Area.
Stevedores--Latin America.