| Author: | Smith, Evelyn E., 1922-2000 |
| Subject: | PS, Science fiction |
| Format: | Text |
| Date issued: | 2016 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | Sentry of the Sky [electronic resource] / Evelyn E. Smith |