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Authors
Author
Philip Coppens
Books
The Lost Civilization Enigma
David Drummond, Philip Coppens
The Canopus Revelation
Philip Coppens
X-Ray Charge Densities and Chemical Bonding
Philip Coppens
The Ancient Alien Question
Philip Coppens
Electron Distributions and the Chemical Bond
Philip Coppens, Michael B. Hall
Servants of the Grail
Philip Coppens
Ancient Alien Question, 10th Anniversary Edition
Philip Coppens
The Lost Civilization Enigma
Philip Coppens