Incoming Resources
- Penguin, Harmondsworth, 1985
- Penguin, Harmondsworth, 1986
- Penguin, Harmondsworth, 1968
- Penguin, Harmondsworth, 1969
- Penguin Books, Harmondsworth, New York, c1990
- Penguin, Harmondsworth, 1981
- Puffin Books, Harmondsworth, New York, 1976