(1964)
etching
(1993)
screenprint
(1995)
reductive linocut
(1982)
(1970)
lithograph
(1965)
relief-etching printed in black ink
(1960s)
etching printed in black ink
collograph
(1998)
(1972)
(1988)
woodcut
(2000)
hardground-etching
(1969)