"Letter" from John Carter to ERB "explaining" how his travel to Mars works
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1977 |
|
Black Holes & Bug-Eyed-Monsters | Dale Books | Anthology | 102 |
| October 1977 |
|
Isaac Asimov's Science Fiction Magazine, Winter 1977 | Davis Publications | MAGAZINE | 92 |
| 1978 |
|
Isaac Asimov's Science Fiction Anthology, Volume 1 | Davis Publications | Anthology | 236 |
| December 1978 |
|
Isaac Asimov's Masters of Science Fiction | Davis Publications | Anthology | 236 |
| 1980 |
|
Takeoff! | Starblaze / The Donning Company | Collection | 209 |
| July 1986 |
|
Takeoff! | Starblaze / The Donning Company | Collection | 209 |