Fundamentals of the esoteric philosophy
MLA
De Purucker, Gottfried. Fundamentals of the Esoteric Philosophy. Califomia: Theosophical University Press, 1947.
APA
De Purucker, G. (1947). Fundamentals of the esoteric philosophy. Califomia: Theosophical University Press.
Chicago
De Purucker, Gottfried, Fundamentals of the Esoteric Philosophy. Califomia: Theosophical University Press, 1947.