Columbia subject headings:
Harvard subject headings:
Museum Folkwang Essen. Fotografische Sammlung--Catalogs.
Photograph collections--Germany--Essen--Catalogs.
Photography, Artistic--Catalogs
Princeton subject headings:
Catalogs.
Museum Folkwang Essen. Fotografische Sammlung--Catalogs.
Photograph collections--Germany--Essen--Catalogs.
Photography, Artistic--Catalogs.