Columbia subject headings:
Art, European--20th century--Sources.
Harvard subject headings:
Art, Central European--20th century--Sources.
Art, East European--20th century--Sources.
Art, European--Europe, Central--20th century--Sources.
Art, European--Europe, Eastern--20th century--Sources.
Princeton subject headings:
Art, Central European--20th century--Sources.
Art, East European--20th century--Sources.