Operation Trojan Horse an exhaustive study of unidentified flying objects, revealing their source and the forces that control them
Keel, John A.
London Abacus
1973
Originally published: as 'UFO's : Operation Trojan Horse', New York : Putnam, 1970 ; and as 'Operation Trojan Horse', London : Souvenir Press, 1971
Bibliography: p.308-312. - Includes index
Unidentified flying objects.