Frontiers of the unknown
Subtitle: the insights of psychical research
By: Andrew MacKenzie.  With an introduction by C. D. Broad.
Contributors: Broad, C. D. 1887-1971.; Society for Psychical Research (Great Britain).
Publisher: 1968.r
Published: 1968
Place of publication: London
Number of pages: 208
Subjects: Occultism; Parapsychology