Rajagopalachari, C. (2021). Upanishad. Bharathiyavidya Bhavan.
Cita Chicago Style (17a ed.)Rajagopalachari, C. Upanishad. Mumbai: Bharathiyavidya Bhavan, 2021.
Cita MLA (9a ed.)Rajagopalachari, C. Upanishad. Bharathiyavidya Bhavan, 2021.
Precaución: Estas citas no son 100% exactas.