Columbia subject headings:
Harvard subject headings:
Germany--Commerce--History--16th century--Congresses.
Germany--Commerce--History--To 1500--Congresses.
Industrial procurement--Germany--History--16th century--Congresses.
Industrial procurement--Germany--History--To 1500--Congresses.
Princeton subject headings:
Germany--Commerce--History--16th century--Congresses.
Industrial procurement--Germany--History--16th century--Congresses.