Preliminary assessment : unidentified aerial phenomena.

Bibliographic Details
New Title:	... annual report on unidentified aerial phenomena
Corporate Author:	United States. Office of the Director of National Intelligence (Author)
Format:	Government Document eBook
Language:	English
Published:	[Washington, D.C.] : Office of the Director of National Intelligence, 2021.
Subjects:	Unidentified flying objects > Sightings and encounters > United States. Unidentified flying objects > Government policy > United States. National security > United States. National security Unidentified flying objects > Government policy Unidentified flying objects > Sightings and encounters United States
Online Access:	https://purl.fdlp.gov/GPO/gpo156940

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