Incoming Resources
- Puffin Books, Harmondsworth, Eng., New York, 1976
- Penguin Books, Harmondsworth, Eng., 1964
- Penguin Books, Harmondsworth, Eng., Baltimore, 1975
- Penguin Books, Harmondsworth, Eng., Baltimore, 1972
- Penguin Books, Harmondsworth, Eng., New York, N.Y., 1976
- Penguin Books, Harmondsworth, Eng., New York, 1978
- Penguin Books, Harmondsworth, Eng., Baltimore, Md., 1973, c1972