Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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