Columbia subject headings:
America--Commerce--Spain--Cádiz.
Cádiz (Spain)--Commerce--America.
Cádiz (Spain)--Economic conditions.
Spain--Colonies--Commerce.
Harvard subject headings:
America--Commerce--Spain--Cádiz.
Cádiz (Spain)--Commerce--America.
Cádiz (Spain)--Economic conditions.
Spain--Colonies--Commerce.
Princeton subject headings:
America--Commerce--Spain--Cádiz.
Cádiz (Spain)--Commerce--America.
Cádiz (Spain)--Economic conditions.
Spain--Colonies--Commerce.