Columbia subject headings:
Conference papers and proceedings.
Hansa towns--Congresses.
Hanseatic League--Congresses.
Livonia--History--To 1500--Congresses.
Harvard subject headings:
Hansa towns--Congresses.
Hanseatic League--Congresses.
Livonia--History--To 1500--Congresses.
Princeton subject headings:
Conference papers and proceedings.
Hansa towns--Congresses.
Hanseatic League--Congresses.
Livonia--History--To 1500--Congresses.