| Author: | United States. Air Force |
| Subject: | TL, Project Blue Book (U.S.), Unidentified flying objects |
| Format: | Text |
| Date issued: | 2008 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | USAF Fact Sheet 95-03 : Unidentified Flying Objects and Air Force Project Blue Book [electronic resource] / United States. Air Force |