(1972)
screenprint
(1960)
woodcut
(1952)
linocut
(1970s)
(1966)
etching
(1960-70)
transfer drawing
(1992)
lithograph
((1958))
(1963)
(1958)
relief-etching
(1957)
softground etching
softground etching and aquatint
etching and aquatint