Columbia subject headings:
Etching--Exhibitions.
Graphic arts--Exhibitions.
Hockney, David--Exhibitions.
Hockney, David.
Lithography--Exhibitions.
National Gallery of Australia--Exhibitions.
Prints, English--Exhibitions.
Tyler, Kenneth E.--Exhibitions.
Harvard subject headings:
Etching--Exhibitions
Graphic arts--Exhibitions
Hockney, David--Exhibitions.
Lithography--Exhibitions
National Gallery of Australia--Exhibitions.
Prints, English--Exhibitions.
Princeton subject headings:
Etching--Exhibitions.
Graphic arts--Exhibitions.
Hockney, David--Exhibitions.
Lithography--Exhibitions.
National Gallery of Australia--Exhibitions.
Prints, English--Exhibitions.