(1976)
woodcut
(1979)
etching
(1997)
photo-etching
(1953)
(1975)
linocut
(1965)
(1960-80)
(1978)
(c.1930)
(1963)
engraving
lithograph
(c.1965)
monotype
(1967)
(1988)
softground etching