(1992)
softground etching and aquatint
etching and aquatint
etching
(1957)
lithographs
(1958)
relief-etching
(1960-70)
transfer drawing
softground etching
aquatint
lithograph
(c.1960)
drypoint
((1949))
monotype
(1938)
(1989)
drypoint and roulette