Columbia subject headings:
Painting, Mexican--20th century--Exhibitions.
Siqueiros, David Alfaro--Exhibitions.
Harvard subject headings:
Painting, Modern--20th century--Exhibitions
Politics in art--Exhibitions
Siqueiros, David Alfaro, 1896-1974--Exhibitions.
Social problems in art--Exhibitions.
Princeton subject headings:
Politics in art--Exhibitions.
Siqueiros, David Alfaro--Exhibitions.
Social problems in art--Exhibitions.