(1999)
etching
(1981)
aquatint
(1984)
screenprint
(1985)
(1982, before 28 August)
photographic and aquatint
(1975)
lithograph
(2008)
digital prints
(1964, July)
drypoit and soldering
(c.1963)
linocut
(1987)
etching and aquatint
(1959)
woodcut
(1995, September)
wood-engraving
(2005)
(1996)
(1982)
offset-lithograph