Blum Ralph, Blum Judy. Beyond Earth. Man's Contact with UFO

London: Gorgi Books, 1974. - 237 с. Отсканированный PDFAnother quality tome on the study of the UFO phenomena. A very no-nonsense approach to a difficult subject. Worthy of an in-depth read by anyone who is attempting LEGITIMATE research in this field.
The details of each incident jump off the page and truly make the reader question a lot of preconceived notions. Highly recommended.