Facts
- Author
- United States. Federal Bureau of Investigation
- Language
- English
- Project Gutenberg No.
- 25706
- Released on Project Gutenberg
- June 5, 2008
- Bookshelves
- History - American, History - Modern (1750+), Politics
- Subjects
- Unidentified flying objects
- Public domain in the USA
- yes
Sources: Project Gutenberg catalogue (public domain), Wikidata (CC0)