(1960-80)
etching
(1975)
woodcut
(2001)
lithograph
(1973)
screenprint
(1956-57)
linocut
aquatint
(c.1930)
(1971)
hard ground
(c.1975)
(1991)
drypoint
(1988)
(1990)
(c.1984)
(1983)
offset-lithograph
(1964)