The Isha Upanishad, Verses 1-18, with Sanskrit recitation by Sri Vinayak and the English translation by Sri Aurobindo, recited by Santosh Krinsky, produced in 1973 at Sri Aurobindo Ashram
reference: https://www.lotuspress.com/products/upanishads-1st-us-edition-990360?_pos=2&_sid=bed198415&_ss=r
Extensive review and commentary of Sri Aurobindo's The Upanishads is available at http://sriaurobindostudies.wordpress.com
More information about
Sri Aurobindo can be found at http://www.aurobindo.net
The US editions and links to e-book editions of Sri Aurobindo’s writings can be found at http://www.lotuspress.com
Sri Aurobindo Studies