(1964)
linocut
(1951)
etching
(1999, November)
(1977)
woodcut
etching and aquatint
(1962)
(1992)
(1967)
etched zinc plate
(1989)
((1968-69))
(1960-70)
(1965)
etching and aquatint printed in black ink
(1985)
aquatint
etching and drypoint
(May 1965)
line-etching
(October 1965)
line-etching and aquatint