Columbia subject headings:
Otero, Roberto--Exhibitions.
Picasso, Pablo, 1881-1973--Portraits--Exhibitions.
Harvard subject headings:
Museo Picasso Málaga--Photograph collections.
Picasso, Pablo, 1881-1973--Pictorial works.
Princeton subject headings:
Otero, Roberto--Exhibitions.
Picasso, Pablo, 1881-1973--Portraits--Exhibitions.
Portraits.