Hartmann, W. C. (1927). Who's who in occultism, new thought, psychism and spiritualism: A biography, directory and bibliography combined in distinctly separate sections (2nd ed.). Jamaica, NY: Occult Press.
Chicago Style CitationHartmann, William C. Who's Who in Occultism, New Thought, Psychism and Spiritualism: A Biography, Directory and Bibliography Combined in Distinctly Separate Sections. 2nd ed. Jamaica, NY: Occult Press, 1927.
MLA CitationHartmann, William C. Who's Who in Occultism, New Thought, Psychism and Spiritualism: A Biography, Directory and Bibliography Combined in Distinctly Separate Sections. 2nd ed. Jamaica, NY: Occult Press, 1927.