Columbia subject headings:
Harvard subject headings:
French-speaking countries--Relations--Portuguese-speaking countries.
Language and culture--French-speaking countries.
Language and culture--Portuguese-speaking countries.
Portuguese-speaking countries--Relations--French-speaking countries.
Princeton subject headings:
Culture and globalization--Portuguese-speaking countries.
Culture and globalization--Spanish-speaking countries.
Portuguese-speaking countries--Civilization.
Portuguese-speaking countries--Relations--Spanish-speaking countries.
Spanish-speaking countries--Civilization.
Spanish-speaking countries--Relations--Portuguese-speaking countries.