Katherine Tingleys Vortrag während ihrer Europareise in London, Kingsway Hall
- Der Theosophische Pfad, Jahrgang XXI, Ausgabe 07
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- The Secret Doctrine (PDF eBooks)
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- SD References Vol 1
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- The Secret Doctrine Index by John P. Van Mater
- An Invitation to The Secret Doctrine
- Secret Doctrine Commentary / Stanzas I-IV: Transactions of the Blavatsky Lodge