Tham khảo Helena_Blavatsky

  1. ↑ Edward Bulwer-Lytton, The Coming Race, Introduction by David Seed, Wesleyan University Press, 2007, p. xlii.
  2. ↑ Brian Stableford, The A to Z of Fantasy Literature, Scarecrow Press, 2009, "Blavatsky, Madame (1831–1991)".
  3. ↑ Carlson, Maria (2015). No Religion Higher Than Truth: A History of the Theosophical Movement in Russia, 1875-1922. tr. 33. ISBN 9780691607818.