Project Blue Book reports
E318048
UNEXPLORED
Project Blue Book reports are the official U.S. Air Force investigative files compiled from 1952 to 1969 that analyze and catalog thousands of UFO sightings and related phenomena.
Observed surface forms (1)
| Surface form | As subject | As object |
|---|---|---|
| Project Blue Book | 0 | 1 |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Project Blue Book