Columbia subject headings:
Cuba--Commerce--Spain--History.
Real Compañía de la Habana.
Spain--Commerce--Cuba--History.
Harvard subject headings:
Cuba--Commerce--Spain--History.
Real Compañía de la Habana.
Spain--Commerce--Cuba--History.
Princeton subject headings:
Cuba--Commerce--Spain--History.
Real Compañía de la Habana.
Spain--Commerce--Cuba--History.