| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1962 |
|
Letters from the Earth | Harper & Row | Collection | 115 |
| September 1963 |
|
Letters from the Earth | Crest Books / Fawcett World Library | Collection | 103 |
| 1970 |
|
Letters from the Earth | Fawcett Crest | Collection | 103 |
| October 1982 |
|
World Fantasy Convention '82 | Nonfiction | 47|47.2 | |
| July 2020 |
|
HYNH+ Vol. III. Nr 3/4 | GSF | MAGAZINE | 85 |