Columbia subject headings:
Harvard subject headings:
Mediterranean Region--Civilization--Congresses.
Melilla (Spain)--Economic conditions--Congresses.
Melilla (Spain)--Ethnic relations--Congresses.
Melilla (Spain)--Politics and government--Congresses.
Princeton subject headings:
Africa, North--Civilization--Congresses.
Mediterranean Region--Civilization--Congresses.
Melilla (Spain)--Economic conditions--Congresses.
Melilla (Spain)--Social conditions--Congresses.