Eight Upanisads.
Śaṅkarācārya.
Gambhīrānanda,Swāmī.tr.
Calcutta : Advaita Ashrama ; [Bourne End : Distributed by Ramakrishna Vedanta Centre],
[1965-1966]
"Sixth impression, November 1986" - v. 1. "Eighth impression, December 1990" - v. 2.
v.1. Isā, Kena, Katha, and Taittirȳa.- v.2. Aitareya, Mundaka, Mandukaya & Karika, and Praśna.