Columbia subject headings:
Balearic Islands (Spain)--History--Congresses.
Majorca (Spain)--History--Congresses.
Minorca (Spain)--History--Congresses.
Palma de Mallorca (Spain)--History--Congresses.
Harvard subject headings:
Balearic Islands (Spain)--History--Congresses.
Majorca (Spain)--History--Congresses.
Minorca (Spain)--History--Congresses.
Palma de Mallorca (Spain)--History--Congresses.
Princeton subject headings:
Aragon (Spain)--History--Congresses.
Balearic Islands (Spain)--History--Congresses.
Majorca (Kingdom)--History--Congresses.
Majorca (Spain)--History--Congresses.
Minorca (Spain)--History--Congresses.
Palma de Mallorca (Spain)--History--Congresses.