(1982)
photocopy
(1963)
screenprint
(1979)
(1944)
monotype
(1945)
etching
(1922)
(1988)
photo-etching
aquatint
(1898)
etching and aquatint
(1954)
relief-etching
(1937)
wood-engraving
(1932)
lithograph
(1972)
collograph
(2000, June)
((1958-59))