(1934)
etching
(1980)
linocut
(1962)
(1967)
lithograph
(1960)
woodcut
(1977)
softground-etching
(1912)
drypoint
(1948)
(1986)
etching and aquatint
(1983)
screenprint
(c.1950)
(1999, April)
(1988)
photo-etching