The twelve principal Upanishads. English translation with notes from the commentaries of Sankarācārya and the gloss of Ānandagiri. - Śaṅkarācārya; Ānandagiri; Röer, Edward, 1805-1866; Mitra, Rājendralāla, Raja, 1824-1891; Cowell, Edward B. (Edward Byles), 1826-1903 (Bombay : published by Tookaram Tatya, for the Bombay Theosophical Publication Fund, 1891)
I. Īśa, Kena, Kaṭha, Praśna, Muṇḍaka, Māṇḍūkya, Taittiriȳa, Aitereya and Śvetāśvatar-a-Upaniṣads, by E. Röer. 1931.--II. Bṛhadāraṇyaka-Upaniṣad, by E. Röer. 1931.--III. Chāndogya and Kauṣītaki-Brāhmaṇa Upanṣads, byhRaja Rajendralal Mitra and E. B. Cowell. 1932.