Columbia subject headings:
Galicia (Spain : Region)--Relations--Puerto Rico--Congresses.
Galicians (Spain)--Puerto Rico--Congresses.
Puerto Rico--Relations--Spain--Galicia (Region)--Congresses.
Harvard subject headings:
Galicia (Spain : Region)--Relations--Puerto Rico--Congresses.
Galicians (Spain)--Puerto Rico--Congresses.
Puerto Rico--Relations--Spain--Galicia (Region)--Congresses.
Princeton subject headings:
Galicia (Spain : Region)--Emigration and immigration--Congresses.
Galicians (Spain)--Puerto Rico--Congresses.
Immigrants--Puerto Rico--Congresses.
Puerto Rico--Emigration and immigration--Congresses.