Radhakrishnan, S. The Principal Upanisads / edited with introduction , text , translation and notes by S. Radhakrishnan. - Great Britain : Haper Collins , 2012. - 958p. ;23cm. ISBN: 9788172231248 ₹799.00 Subjects--Topical Terms: Upanishads and scienceUpanishads Dewey Class. No.: 294.59128 / R128P