| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1960 |
|
The Worlds of Clifford Simak | Simon & Schuster | Collection | 351 |
| August 1960 |
|
The Worlds of Clifford Simak | Simon & Schuster / SFBC | Collection | 281 |
| 1961 |
|
The Worlds of Clifford Simak | Avon | Collection | 170 |
| 1961 |
|
The Worlds of Clifford Simak | Avon | Collection | 170 |