Columbia subject headings:
Cartagena (Spain)--Commerce--History.
Harbors--Spain--Cartagena--History.
Harvard subject headings:
Cartagena (Spain)--Commerce--History--16th century.
Cartagena (Spain)--Commerce--History--17th century.
Harbors--Spain--Cartagena--History--16th century.
Harbors--Spain--Cartagena--History--17th century.
Princeton subject headings: