Columbia subject headings:
Harvard subject headings:
Japan--Commerce--Portugal.
Japan--Economic conditions--1600-1868.
Japan--Foreign relations--Portugal.
Portugal--Commerce--Japan.
Portugal--Foreign relations--Japan.
Princeton subject headings:
Japan--Commerce--Portugal.
Japan--Economic conditions--1600-1868.
Japan--Foreign relations--Portugal.
Portugal--Commerce--Japan.
Portugal--Foreign relations--Japan.