Publications (3)
| Date | Publication | Publisher | Type | Page |
|---|---|---|---|---|
| April 1952 | Thrilling Wonder Stories, April 1952 | Standard Magazines, Inc. | MAGAZINE | 78 |
| July 1952 | Thrilling Wonder Stories (UK), July 1952 | Atlas Publishing and Distribution Co. Ltd | MAGAZINE | |
| September 1982 | The Worlds of George O. | Bantam Books | Collection | 33 |