Alcock, J., E. (1981) Parapsychology: science or magic? Oxford: Pergamon Press
Beloff, J. (1993) Parapsychology: a concise history. London: The Athlone Press
Broughton, R., S. (1991) Parapsychology: the controversial science. New York:
Ballantine Books
Burt, C. (1975) ESP and psychology. London: Wiedenfeld and Nicolson
Roberts, R. & Groom, D. (2001) Parapsychology: the science of unusual
behaviour.
London: Arnold Publishers
Microsoft Encarta Reference Library 2002






