Columbia subject headings:
Aelaunay, Robert, 1885-1941--Exhibitions.
Delaunay, Sonia--Exhibitions.
Harvard subject headings:
Delaunay, Robert, 1885-1941--Exhibitions.
Delaunay, Sonia--Exhibitions.
Princeton subject headings:
Delaunay, Robert, 1885-1941--Exhibitions.
Delaunay, Sonia--Exhibitions.