Principles of theosophy

MLA

Mainage, Th, Yvonne Cooper, and Suzanne Duché. Principles of Theosophy. London: Sheed & Ward, 1927.

APA

Mainage, T., Cooper, Y., & Duché, S. (1927). Principles of theosophy. London: Sheed & Ward.

Chicago

Mainage, Th. Principles of Theosophy. Translated by Yvonne Cooper and Suzanne Duché. London: Sheed & Ward, 1927.