Columbia subject headings:
Harvard subject headings:
Azores--Archival resources.
Azores--Historiography.
Azores--History--Bibliography.
Cabo Verde--History--Bibliography.
Canary Islands--History--Bibliography.
Islands of the Atlantic--Archival resources.
Islands of the Atlantic--Historiography.
Islands of the Atlantic--History--Bibliography.
Madeira Islands--Archival resources.
Madeira Islands--Historiography.
Madeira Islands--History--Bibliography.
Princeton subject headings:
Azores--History--Bibliography.
Cabo Verde--History--Bibliography.
Canary Islands--History--Bibliography.
Madeira Islands--History--Bibliography.