Bentine, Michael
The door marked summer
Granada , 1981
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Research in parapsychology 1989: abstracts and papers from the thirty-second annual convention of the Parapsychological Association, 1989
editors, Linda A. Henkel, John Palmer
Scarecrow Press, 1990
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Karolyi, George
An excursion into the paranormal
The Paranormal Phenomena Research Foundation, 2009
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Civilisation, war and death Sigmund Freud
edited John Rickman
Hogarth Press, 1953
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Parapsychology: research on exceptional experiences
edited by Jane Henry
Routledge, 2005
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