| Original Language | English |
| First published | 1948-06 |
| Notes | "The Trans-Galactic Twins" is a novella by George O. Smith, first published in Thrilling Wonder Stories, June 1948. |
Editions 1
Add Edition| Title | Publisher | Format | Language | Location | Dates | Impression | |
|---|---|---|---|---|---|---|---|
 | Thrilling Wonder Stories, June 1948 | Standard Magazines, Inc. | Pulp Magazine | English | New York, NY | 1948 |