Incoming Resources
- Penguin, Harmondsworth, 1972
- Penguin, Harmondsworth, 1987
- Penguin, Harmondsworth, New York, etc., 1976
- Harmondsworth, Penguin, 1985
- Penguin, Harmondsworth, 1979, c1974, 1981 printing
- Penguin, Harmondsworth, 1986
- Puffin Books, Harmondsworth, New York, 1978, c1962
- Penguin, Harmondsworth, 1984, c1983
- Penguin, Harmondsworth, Baltimore etc., 1975
- Penguin, Harmondsworth, 1974
- Penguin, Harmondsworth, 1984, c1975