(1999)
etching
(1981)
aquatint
(1984)
screenprint
(1985)
(1982, before 28 August)
photographic and aquatint
(1975)
lithograph
(2008)
digital prints
(2005)
linocut
(1959)
woodcut
(1987)
etching and aquatint
(1964, July)
drypoit and soldering
(c.1963)
(1995, September)
wood-engraving
(1996)
(1982)
offset-lithograph
(1960)