Blavatsky, H. P., & Blavatsky, H. P. (1921). Index to vols. I, II and III (3. and revised ed.). The Theosophical Publ. House.

Blavatsky, Helena P., and Helena P. Blavatsky. Index to Vols. I, II and III. 3. and revised ed. London: The Theosophical Publ. House, 1921.

Blavatsky, Helena P., and Helena P. Blavatsky. Index to Vols. I, II and III. 3. and revised ed. The Theosophical Publ. House, 1921.