The Grandfather Problem
| First published | August 1988 |
|---|---|
| Type | Short Fiction |
| Length | Short Story |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| August 1988 |
|
Isaac Asimov's Science Fiction Magazine, August 1988 | Davis Publications | MAGAZINE | 108 |
| 1990 |
|
Isaac Asimov Magazine, #04 | Record | MAGAZINE | |6 |