Columbia subject headings:
Photography, Artistic--Exhibitions.
Viñuales, Elías, 1892-1940--Exhibitions.
Viñuales, Nicolás, 1881-1927--Exhibitions.
Harvard subject headings:
Photography, Artistic--Exhibitions
Viñuales, Elías, 1892-1940--Exhibitions.
Viñuales, Nicolás, 1881-1927--Exhibitions.
Princeton subject headings:
Photography, Artistic--Exhibitions.
Viñuales, Elías, 1892-1940 Exhibitions.
Viñuales, Nicolás, 1881-1927 Exhibitions.