| Author: | Smith, Phyllis Sterling, 1925-1990 |
| Subject: | PS, Science fiction, Short stories, Secret societies -- Fiction |
| Format: | Electronic text |
| Date issued: | 2016 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | What is POSAT? [electronic resource] / Phyllis Sterling Smith |