translated from the Sanskrit with an outline of the philosophy of the Upanishads and an annotated bibliography by Robert Ernest Hume ; with a list of recurrent and parallel passages by George C.O. HaasOxford University Press1983
Translated from the Sanskrit with introductions embodying a general survey and the metaphysics and psychology of the Upanishads, and with notes and explanations based on the commentary of Śri Śankarāchārya, the great ninth-century philosopher and saint of India, by Swami NikhilānandaRamakrishna-Vivekanda Center1977