(1947)
aquatint
(1949)
etching and aquatint
(1978)
linocut
(1953)
lithograph
(1976)
screenprint
(1989)
(1999)
Linocut
(1975)
(1982)
(1978-79)
(c.1962)
transfer drawing
(1964)
etching
(1954)
sugarlift
(1973)
(1968)
colour etching and aquatint
(1974)