Mysteries : a guide to the unknown : past, present and future /
Wilson, Colin,1931-2013.
Grant, John,1949-
London : Chancellor,
1994.
First published in Great Britain in 1981 by Webb & Bower under the title: The directory of possibilities
Bibliography: p. 223-225
Curiosities and wonders.
Occultism.
Parapsychology.
Supernatural.