| Author: | Bok, Hannes, 1914-1964 |
| Subject: | PS, Prisoners -- Fiction, Adventure stories, Science fiction, Torture -- Fiction, Human-alien encounters -- Fiction |
| Format: | Text |
| Date issued: | 2020 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | Proktols of Neptune [electronic resource] / Hannes Bok |