APA-čujuhus (7. p.)

Sivananda,Swami. (1998). Principles Upanishads (NA.). Divine Life Society.

Chicago-čujuhus (17. p.)

Sivananda,Swami. Principles Upanishads. NA. Himalayas: Divine Life Society, 1998.

MLA-čujuhus (9. p.)

Sivananda,Swami. Principles Upanishads. NA. Divine Life Society, 1998.

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