उपनिषद्वाक्यमहाकोश: Upanisad-Vakya-Maha-Kosa Volume 1 and 2

Upanisad-Vakya-Maha-Kosa.The text is a comprehensive concordance of verses prepared from 223 different Upanishads.

It was prepared by Shastri Gajanan Shambhu Sadhale.

The work is primarily in Sanskrit, offering a systematic collection of Vedic sentences