| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1960 |
|
The Unexpected Dimension | Ballantine Books | Collection | 110 |
| 1962 |
|
The Unexpected Dimension | Gollancz | Collection | 110 |
| February 1963 |
|
The Unexpected Dimension | The Science Fiction Book Club (UK) | Collection | 110 |
| March 1964 |
|
The Unexpected Dimension | Panther | Collection | 87 |
| 1966 |
|
The Unexpected Dimension | Panther | Collection | 87 |
| May 1979 |
|
The Unexpected Dimension | Fontana | Collection | 122 |
| 1996 |
|
Pirate Writings, #11 1996 | Pirate Writings Publishing | MAGAZINE | 14 |
| September 1997 |
|
Entertainment | NESFA Press | Collection | 87 |
| September 2011 |
|
The Unexpected Dimension | Gateway / Orion | Collection | |6 |