Paperback
ISBN: 978-0-00-617266-6
ISBN-10: 0-00-617266-0
HarperCollins Publishers Ltd ยท 1986
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Paperback
ISBN: 978-0-00-617266-6 ISBN-10: 0-00-617266-0 HarperCollins Publishers Ltd ยท 1986 |
| See also (possibly by other authors): | ||
| 1992 | Paperback | Decision at Delphi |
| 1960 | Hardcover | Decision At Delphi |