The Upanishads - Müller, F. Max (Friedrich Max), 1823-1900. (Oxford : The Clarendon press, 1879)
pt.I. The Khândogya-upanishad. The Talavakâra-upanishad. The Aitareya-âranyaka. The Kaushîtaki-brâhmana-upanishad and the Vâgasaneyi-samhitâ-upanishad.--pt.II. The Katha-upanishad. The Mundaka-upanishad. The Taittirîyaka-upanishad. The Brihadâranyaka-upanishad. The Svetâsvatara-upanishad. The Maitrâyana-brâhmana-upanishad.
The text of each volume preceded by introduction.