Columbia subject headings:
Art, Belgian--20th century--Catalogs.
Art, Belgian--Eupen--Catalogs.
Art, German--20th century--Catalogs.
Deutschsprachige Gemeinschaft (Eupen, Belgium)--Art collections.
Harvard subject headings:
Art, Belgian--20th century--Catalogs.
Art, German--20th century--Catalogs.
Art--Belgium--Eupen--Catalogs.
Deutschsprachige Gemeinschaft (Eupen, Belgium)--Art collections--Catalogs.
Princeton subject headings:
Art, Belgian--20th century--Catalogs.
Art, German--20th century--Catalogs.
Art--Belgian--Eupen--Catalogs.
Catalogs.
Deutschsprachige Gemeinschaft (Eupen, Belgium)--Art collections.