Columbia subject headings:
Barcelona (Spain)--Social life and customs--20th century--Pictorial works--Exhibitions.
Casas, Gabriel, 1892-1973--Exhibitions.
Photography, Artistic--Exhibitions.
Harvard subject headings:
Barcelona (Spain)--Social life and customs--20th century--Pictorial works--Exhibitions.
Casas, Gabriel, 1892-1973--Exhibitions.
Photography, Artistic--Exhibitions
Princeton subject headings:
Barcelona (Spain)--Social life and customs--20th century--Pictorial works--Exhibitions.
Casas, Gabriel, 1892-1973--Exhibitions.
Photography, Artistic--Exhibitions.