| Author: | Gilgannon, Daniel R., 1914-1972 |
| Subject: | PS, Science fiction, Weapons -- Fiction, Physicists -- Fiction |
| Format: | Electronic text |
| Date issued: | 2023 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | Stopwatch on the world [electronic resource] / Daniel R. Gilgannon |