| Author: | Clifton, Mark, 1906-1963 |
| Subject: | PS, Science fiction, Life on other planets -- Fiction |
| Format: | Text |
| Date issued: | 2008 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | Eight Keys to Eden [electronic resource] / Mark Clifton |