Hume, R. (1931). The thirteen principal upanishads (2nd rev.). O.U.P.
Chicago Style aipamenaHume, Robert. The Thirteen Principal Upanishads. 2nd rev. Madras: O.U.P, 1931.
MLA aipamenaHume, Robert. The Thirteen Principal Upanishads. 2nd rev. O.U.P, 1931.
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