Columbia subject headings:
Brazil--History--20th century--Pictorial works.
Photography--Brazil--History.
Photojournalism--Brazil--20th century--History.
Harvard subject headings:
Brazil--History--20th century--Pictorial works.
Brazil--Social life and customs--20th century--Pictorial works.
Documentary photography--Brazil--History--20th century.
Photojournalism--Brazil--History--20th century.
Princeton subject headings:
Brazil--History--20th century--Pictorial works.
Photography--Brazil--History.
Photojournalism--Brazil--20th century--History.