| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| March 1952 |
|
If, March 1952 | Quinn Publishing Company, Inc.; Kingston, NY | MAGAZINE | 4 |
| March 1997 |
|
Carbon-Copy Killer / Twelve Times Zero | Gryphon Books | Collection | 3 |
| May 2010 | Twelve Times Zero | Project Gutenberg | Chapbook | ||
| October 2011 |
|
The Metal Doom / Twelve Times Zero | Armchair Fiction | Omnibus |