Charles T. Tart Seventy Years of Exploring Consciousness and Parapsychology Mishlove, Jeffrey Heftet / 2025 / Engelsk
El fin del materialismo Parapsicología, Ciencia Y Espiritualidad Tart, Charles Heftet / 2013 / Spansk
Channeling Investigations on Receiving Information from Paranormal Sources, Second Edition Klimo Jon Heftet / 1998 / Engelsk
