Search for 'su:Unidentified flying objects.'

Scientific UFOlogy :

By Randle, Kevin D.,. New York : HarperTorch 1999 . vi, 241 p. : , - 21 cm.. 0380813831

By Bramley, William. New York Avon Books 1990 . 483p. , Includes index 17cm.. 0380718073

By Jackson,Robert. New York Smithmark Publishers 1992 . 80p. , Includes index 30cm. 0831790563

By Brookesmith,Peter. London Blandford 1998 . 176p. , Includes index 31cm. 0713727020