Columbia subject headings:
Harvard subject headings:
Bouches-du-Rhône (France)--History.
Docks--France--Bouches-du-Rhône--History.
Harbors--France--Bouches-du-Rhône--History.
Princeton subject headings:
Bouches-du-Rhône (France)--History.
Docks--France--Bouches-du-Rhône--History.
Harbors--France--Bouches-du-Rhône--History.