Incoming Resources
- Tate Gallery, London, 1970
- Tate Gallery, Truchas, N.M., 1967
- Tate Gallery, London, 1990, c1989
- Tate Gallery, London, 1978
- Tate Gallery, London, c1985
- Tate Gallery, Museum of Modern Art, Distributed by H.N. Abrams, London, New York, c1993