Columbia subject headings:
International trade.
Portugal--Commerce--East Indies--History--16th century.
Venice (Italy)--Commerce--Orient--History--16th century.
Harvard subject headings:
International trade
Portugal--Commerce--East Indies--History--16th century.
Venice (Italy)--Commerce--Orient--History--16th century.
Princeton subject headings:
International trade.
Portugal--Commerce--East Indies--History--16th century.
Venice (Italy)--Commerce--Orient--History--16th century.