Guy Lyon Playfair has written:
'The Indefinte boundary' -- subject(s): Occultism,
Parapsychology, Research
'The haunted pub guide' -- subject(s): Bars (Drinking
establishments), Ghosts, Hotels, taverns, Miscellanea
'Twin telepathy' -- subject(s): Psychology, Twins
'I Kykli ton Ouranou'
'The cycles of heaven' -- subject(s): Occultism,
Parapsychology
'This house is haunted' -- subject(s): Case studies, History,
Poltergeists