Columbia subject headings:
Art, Modern--20th century--Exhibitions.
Art, Modern--21st century--Exhibitions.
Boxing in art--Exhibitions.
Harvard subject headings:
Boxers (Sports)--Pictorial works--Exhibitions.
Boxing in art--Exhibitions.
Boxing trainers--Pictorial works--Exhibitions.
Boxing--Pictorial works--Exhibitions.
Princeton subject headings:
Art, Modern--20th century--Exhibitions.
Art, Modern--21st century--Exhibitions.
Boxing in art--Exhibitions.