Columbia subject headings:
Harvard subject headings:
Hanseatic League--History--Congresses.
Law of the sea--Hansa towns--History--Congresses.
Law--Hansa towns--History--Congresses.
Maritime law--Hansa towns--History--Congresses.
Municipal corporations--Hansa towns--History--Congresses.
Princeton subject headings:
Hanseatic League--History--Congresses.
Law of the sea--Hansa towns--History--Congresses.
Law--Hansa towns--History--Congresses.
Maritime law--Hansa towns--History--Congresses.
Municipal corporations--Hansa towns--History--Congresses.