Blavatsky, H. P. (2007). The key to theosophy: Being a clear exposition, in the form of question and answer, of the ethics, science and philosophy for the study of which the Theosophical Society has been founded. Theosophy Trust.
Chicago-Zitierstil (17. Ausg.)Blavatsky, Helena P. The Key to Theosophy: Being a Clear Exposition, in the Form of Question and Answer, of the Ethics, Science and Philosophy for the Study of Which the Theosophical Society Has Been Founded. [S.l.]: Theosophy Trust, 2007.
MLA-Zitierstil (9. Ausg.)Blavatsky, Helena P. The Key to Theosophy: Being a Clear Exposition, in the Form of Question and Answer, of the Ethics, Science and Philosophy for the Study of Which the Theosophical Society Has Been Founded. Theosophy Trust, 2007.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.