NOTES FROM THE HANGAR (VOL 1, NO 1): THE UNDERGROUND BASE AT DULCE, SCIENTOLOGY, WILHELM REICH, AND THE BIOLOGICAL THEORY OF UFOS BY JIM KEITH (1991)
UFOS AND RELATED SUBJECTS: AN ANNOTATED BIBLIOGRAPHY BY LYNN E. CATOE, LIBRARY OF CONGRESS, DEFENSE TECHNICAL INFORMATION CENTER (1969)
THE HERMETIC AND ALCHEMICAL WRITINGS OF AUREOLUS PHILIPPUS THEOPHRASTUS BOMBAST, OF HOHENHEIM, CALLED PARACELSUS THE GREAT VOL I-II BY PARACELSUS; ARTHUR EDWARD WAITE (1894)