Callahan and the Wheelies
| First published | August 1960 |
|---|---|
| Type | Short Fiction |
| Length | Novelette |
An amateur inventor creates a group of simple little autonomous machines who have the ability to evolve.
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| August 1960 |
|
The Magazine of Fantasy and Science Fiction, August 1960 | Mercury Press, Inc. | MAGAZINE | 104 |
| December 1960 |
|
The Magazine of Fantasy and Science Fiction, December 1960 | Atlas Publishing and Distribution Co. Ltd | MAGAZINE | 101 |
| October 1961 |
|
Fiction, #95 | OPTA | MAGAZINE | 74 |
| November 1966 |
|
Science Fiction Oddities | Berkley Medallion | Anthology | 29 |
| June 1969 | Science Fiction Oddities | Rapp & Whiting | Anthology | 34 |