Davidson, Leon (editor): Flying Saucers: an analysis of the Air Force Project Blue Book Special Report No. 14. 4th ed. (Sc)

This is the fourth edition of Leon Davidsons re-publication of the official Project Blue Book report with an interesting detailed statistical study of American UFOs in the early years of the phenomenon.

1971, Leon Davidson/Saucerian Books, Clarksburg, West Virginia
Softcover, 28 x 21,5 cm