(1955)
linocut
((1952))
(1991)
colour laser print
(1952)
lithograph
(1977)
screenprint
(1958)
(1951)
(1956)
(1995, September/October)
liftground-aquatint
(1995, September)
(c.1958)
etching
(2006)
(1997)
inkjet print