The Upanishads
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 Nikhilānanda
Ramakrishna-Vivekanda Center, 1977
4th ed.
***遡及による流用入力