Columbia subject headings:
Harvard subject headings:
America--Relations--Canary Islands--Congresses.
Canary Islands--Emigration and immigration--Congresses.
Canary Islands--History--Congresses.
Canary Islands--Relations--America--Congresses.
Canary Islands--Religion--Congresses.
Princeton subject headings:
America--Relations--Canary Islands--Congresses.
Canary Islands--Emigration and immigration--Congresses.
Canary Islands--History--Congresses.
Canary Islands--Relations--America--Congresses.
Canary Islands--Religion--Congresses.