APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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

Warning: These citations may not always be 100% accurate.