Columbia subject headings:
Barcelona (Spain)--History--20th century--Pictorial works.
Barcelona (Spain)--Social life and customs--20th century--Pictorial works.
Mas, Adolf, 1861-1936.
Harvard subject headings:
Barcelona (Spain)--History--20th century--Pictorial works.
Barcelona (Spain)--Social life and customs--20th century--Pictorial works.
Mas, Adolf, 1861-1936.
Princeton subject headings: