Gaya APA

BLAVATSKY, H., PRETON, E, H, C. (1996). An Abridgment of the secret doctrine . London: The theosophical publishing house.

Gaya MLA

BLAVATSKY, HP., PRETON, Elizabeth;, HUMPHREYS,, Chrishtmas. "An Abridgment of the secret doctrine". London: The theosophical publishing house, 1996. Book.