The Upanišads. Part 2, Katha Upanišad, Mundaka Upanišad, Taittiriya Upanišad, Brhadaranyaka Upanišad, Śvetaśvatara Upanišad, Praśna Upanišad, Maitrayani Upanišad (New York : Dover Publications, 1962)
Str. IX-LII: Introduction
Str. 347-350: Transliteration of Oriental Alphabets Adopted for the Translations of the Sacred Books of the East