Columbia subject headings:
Harvard subject headings:
Dunkerque (France)--History.
France--History--Medieval period, 987-1515.
Harbors--France--Dunkerque--History.
Princeton subject headings:
Dunkerque (France)--Commerce--History.
Dunkerque (France)--History--Sources.
Dunkerque (France)--History.
Dunkerque (France)--Social life and customs.
Finance, Public--France--Dunkerque--History.
Harbors--France--Dunkerque--History.