The twelve principal Upaniṣads : text in Devanāgari and translation with notes in English from the commentaries of Śaṅkarācārya, and the gloss of Ānandagiri /
[edited by] E. Röer.
- Delhi : D.K. Printworld, 1931.
- 308 for v1 p. 452 for v2 p. 339 for v3 p. 23 cm.
- N.P. series ; no. 18 .
Vol. 3, edited by R. Mitra and E.B. Cowell. Reprint of the 1931-32 ed., published by the Theosophical Publishing House, Adyar. Vol. 3 includes the commentary of Śaṅkarānand.