This piece consists of several different versions of one episode that was supposed to be used in <i>2001: A Space Odyssey</i>, the novel and the movie, but it was discarded later.
The piece should not be merged with the entirely different short story of the same name from the collection The Wind from the Sun.
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1972 |
|
The Lost Worlds of 2001 | Sidgwick & Jackson | Collection | 192 |
| 1972 |
|
The Lost Worlds of 2001 | Sidgwick & Jackson | Collection | 192 |
| January 1972 |
|
The Lost Worlds of 2001 | Signet / New American Library | Collection | 192 |
| January 1972 |
|
The Lost Worlds of 2001 | Signet / New American Library of Canada | Collection | 192 |
| November 1972 |
|
The Lost Worlds of 2001 | Sidgwick & Jackson | Collection | 192 |
| 1974 |
|
The Lost Worlds of 2001 | Sidgwick & Jackson | Collection | 192 |
| December 1976 |
|
The Lost Worlds of 2001 | Sidgwick & Jackson | Collection | 192 |
| 1978 |
|
Izgubljeni svetovi 2001. | Jugoslavija | Collection | 186 |
| September 1978 |
|
The Lost Worlds of 2001 | Sidgwick & Jackson | Collection | 192 |
| September 1979 | The Lost Worlds of 2001 | Gregg Press | Collection | 192 | |
| August 1982 |
|
The Lost Worlds of 2001 | New English Library | Collection | 192 |
| 1988 |
|
Izgubljeni svetovi 2001. | Prosveta | Collection | 186 |