Rajagopalachari, C. (2021). Upanishad. Bharathiyavidya Bhavan.
Cita Chicago (17th ed.)Rajagopalachari, C. Upanishad. Mumbai: Bharathiyavidya Bhavan, 2021.
Cita MLA (9th ed.)Rajagopalachari, C. Upanishad. Bharathiyavidya Bhavan, 2021.
Atenció: Aquestes cites poden no estar 100% correctes.