| Author: | Bradbury, Ray, 1920-2012 |
| Subject: | PS, Psychological fiction, Short stories, Mars (Planet) -- Fiction, Space travelers -- Fiction, Science fiction |
| Format: | Text |
| Date issued: | 2020 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | Defense Mech [electronic resource] / Ray Bradbury |