(1976)
lithograph
(1973)
(1967)
screenprint
(1949)
etching and aquatint
(1972)
woodcut
(1989)
linocut
(1990)
(1965)
linoblock-print
(1992)
etching
(1955-56)
etching and foul biting
(1958)
(1987)
(1978)
(1988)