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Digital Download details (UK). ISBN: 978-0-7434-2089-1 ISBN-10: 0-7434-2089-6 |
| See also (possibly by other authors): | ||
| 1991 | Mass Market Paperback | A Call to Darkness (Star Trek The Next Generation, No 9) |
| 1989 | Paperback | Call to Darkness (Star Trek: The Next Generation) |
| 1989 | Mass Market Paperback | A Call to Darkness (Star Trek The Next Generation, Book 9) |