Columbia subject headings:
Art--Germany--Ruhr (Region)
Art--Rhine River Valley.
Ausstellung "Werdendes Abendland an Rhein und Ruhr" (1956 : Essen, Germany)
Rhine River Valley--Civilization.
Ruhr (Germany : Region)--Civilization.
Harvard subject headings:
Art--Germany--Ruhr (Region).
Art--Germany--Ruhr Region.
Art--Rhine River Valley
Essen. Ausstellung "Werdendes Abendland an Rhein und Ruhr," 1956.
Rhine River Valley--Civilization.
Ruhr (Germany : Region)--Civilization.
Princeton subject headings:
Art--Germany--Ruhr (Region).
Art--Rhine River Valley.
Essen. Ausstellung "Werdendes Abendland an Rhein und Ruhr," 1956.
Rhine River Valley--Civilization.
Ruhr (Germany : Region)--Civilization.