Final report of the scientific study of unidentified flying objects conducted by the University of Colorado under contract to the United States Air Force /
Gillmor, Daniel S.
Condon, Edward Uhler.
University of Colorado.
New York London Bantam
1969
'...reproduction of a report submitted to the National Academy of Sciences on November 15, 1968...' - Title page verso
bibl
Unidentified flying objects.