Columbia subject headings:
Art, European--19th century--Exhibitions.
Art, European--20th century--Exhibitions.
Art, Modern--19th century--Exhibitions.
Art, Modern--20th century--Exhibitions.
Art--South Africa--Johannesburg--Exhibitions.
Johannesburg Art Gallery--Exhibitions.
Harvard subject headings:
Art, European--19th century--Exhibitions
Art, European--20th century--Exhibitions
Art, Modern--19th century--Exhibitions
Art, Modern--20th century--Exhibitions
Art--South Africa--Johannesburg--Exhibitions.
Johannesburg Art Gallery--Exhibitions.
Princeton subject headings:
Art, European--19th century--Exhibitions.
Art, European--20th century--Exhibitions.
Art, Modern--19th century--Exhibitions.
Art, Modern--20th century--Exhibitions.
Art--South Africa--Johannesburg--Exhibitions.
Johannesburg Art Gallery--Exhibitions.