| Author: | Castle, Arnold |
| Subject: | PS, Science fiction, Short stories, War stories, Psychological fiction, Teenage boys -- Fiction |
| Format: | Electronic text |
| Date issued: | 2021 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | The Invisible Enemy [electronic resource] / Arnold Castle |