Columbia subject headings:
Asia--Commerce--Germany (West)
Australia--Commerce--Germany (West)
Germany (West)--Commerce--Asia.
Germany (West)--Commerce--Australia.
Hamburg (Germany)--Commerce.
Harvard subject headings:
Asia--Commerce--Germany--Hamburg.
Australia--Commerce--Germany--Hamburg.
Hamburg (Germany)--Commerce--Asia.
Hamburg (Germany)--Commerce--Australia.
Princeton subject headings: