v. 1. Iṣa, Kena, Kaṭha and Taittirīya - v. 2. Aitareya, Muṇḍaka, Māṇḍukya & Kārikā, and Praśna.
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Eight Upaniṣads. Published by Advaita Ashrama in 1986. Publication and catalogue information, links to buy online and reader comments.