Columbia subject headings:
Cancelo, Juan, 1892-1988--Exhibitions.
Photography--Spain--Exhibitions.
Spain--History--20th century--Pictorial works--Exhibitions.
Harvard subject headings:
Cancelo, Juan--Exhibitions.
Photography--Spain--Exhibitions.
Princeton subject headings:
Cancelo, Juan, 1892-1988--Exhibitions.
Photography--Spain--Exhibitions.