The Upanishads, Part 1 (SBE01), by Max Müller, [1879], at sacred-texts.com
Anquetil Duperron, Oupnek'hat, 1801, 1802. See page clii.
Rammohun Roy, Translation of Several Principal Books, Passages, and Texts of the Veds. Second edition. London, 1832.
Translation of the Moonduk-Ooptinishud of the Uthurvu Ved, p. 23.
Translation of the Céna Upanishad, one of the Chapters of the Sáma Véda, p. 41.
Translation of the Kut'h-Oopunishud of the Ujoor-Ved, p. 55.
Translation of the Ishopanishad, one of the Chapters of the Yajur Véda, p. 81.
H. T. Colebrooke, Miscellaneous Essays, in three volumes, 1873.
K. J. H. Windischmann, Die Philosophie im Fortgange der Weltgeschichte, 1827-34.
F. W. Windischmann, Sancara, seu de theologumenis Vedanticorum, 1833.
E. Röer, The Taittirîya, Aitareya, Svetâsvatara, Kena Îsâ, Katha, Prasna, Mundaka, and Mândûkya Upanishads translated; Bibliotheca, Indica. Calcutta, 1853.
Rajendralal Mitra, The Khândogya Upanishad, with extracts from the commentary of Saṅkara; Bibliotheca Indica. Calcutta, 1862.
E. B. Cowell, The Kaushîtaki-brâhmana-upanishad, edited with an English translation; Bibliotheca Indica. Calcutta, 1861.
E. B. Cowell, The Maitri Upanishad, edited with an English translation; Bibliotheca Indica. Calcutta, 1870.
A. Weber, Die Vagrasûkî des Asvaghosha. Berlin, 1860.
A. Weber, Die Râma-tâpanîya Upanishad. Berlin, 1864.
A. Weber, Analyse der in Anquetil du Perron's Übersetzung enthalten Upanishad; Indische Studien, vol. i, p. 247 et seq.
A. E. Gough, The Philosophy of the Upanishads; Calcutta Review, CXXXI.
P. Regnaud, Matériaux pour servir à l'histoire de la Philosophic de l'Inde. Paris, 1876.
Editions of the Upanishads, their commentaries and glosses have been published in the Tattvabodhinî patrikâ, and by Poley (who has also translated several Upanishads into French), by Röer, Cowell, Rajendralal Mitra, Harakandra Vidyâbhûshana, Visvanâtha Sâstrî, Râmamaya Tarkaratna, and others. For fuller titles see Gildemeister, Bibliotheca Sanscrita, and E. Haas, Catalogue of Sanskrit and Pali Books in the British Museum, s. v. Upanishads.