The UFO enigma : the definitive explanation of the UFO phenomenon
Donald H. Menzel (Author), Ernest H. Taves (Author), Fred L. Whipple (Writer of introduction)
Drawing on government sources as well as on other reports of UFO sightings, this illustrated book provides accurate and documented information on the phenomenon and assists in debunking the myth that UFOs are the space vehicles of intelligent beings from somewhere "out there."
Print Book, English, 1977
1st ed
Doubleday, Garden City, N.Y., 1977