Columbia subject headings:
Harvard subject headings:
Artists' preparatory studies--France--Congresses.
Cubism--France--Congresses.
Guernica (Spain) in art--Congresses.
Guernica (Spain)--History--Bombardment, 1937.
Picasso, Pablo, 1881-1973. Guernica.
Symbolism in art--Congresses.
Princeton subject headings:
Picasso, Pablo, 1881-1973. Guernica.