Jeremy Black - Gods, Demons and Symbols of Ancient Mesopotamia
Order of Nine Angles - Satan, Demons And The Noble Dark Arts Of O9A
Nicolas Schreck - Demons of the Flesh
Eduard Schubert - Paracelsus Forschungen (in German)
Solomonic Grimoires - Lemegeton V Ars Nova
MW MacDowall - Asgard And The Gods The Tales and Traditions of Our Northern Ancestors Ver 2
