Origins of the Sphinx Celestial Guardian of Pre-Pharaonic Civilization Schoch Robert M. Heftet / 2017 / Engelsk
Voyages of the Pyramid Builders The True Origins of the Pyramids from Lost Egypt to Ancient America Schoch Robert M. Heftet / 2004 / Engelsk
Forgotten Civilization New Discoveries on the Solar-Induced Dark Age Schoch Robert M. Heftet / 2021 / Engelsk
Parapsychology Revolution A Concise Anthology of Paranormal and Psychical Research Schoch Robert M. Heftet / 2011 / Engelsk
