Parallel Pasts
| First published | October 1981 |
|---|---|
| Type | Short Fiction |
| Length | Short Story |
| Series | SF Puzzles |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| October 1981 |
|
Isaac Asimov's Science Fiction Magazine, October 26, 1981 | Davis Publications | MAGAZINE | 30 |
| 1986 |
|
Puzzles from Other Worlds: Fantastical Brainteasers from Isaac Asimov's Science Fiction Magazine | Oxford University Press | Collection | 21 |