In-universe essay "by the Survey Commission Office, Kahora, Mars", but actually by the artist who made the Mars maps for Leigh Brackett.
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| July 1977 |
|
The Best of Leigh Brackett | Nelson Doubleday / SFBC | Collection | [365] |
| September 1977 |
|
The Best of Leigh Brackett | Del Rey / Ballantine | Collection | 420 |
| September 1977 |
|
The Best of Leigh Brackett | Del Rey / Ballantine | Collection | 420 |
| June 1986 |
|
The Best of Leigh Brackett | Del Rey / Ballantine | Collection | 420 |
| November 1997 |
|
I canali di Marte | Mondadori | Omnibus | 250 |