Radhakrishnan, S. (1953). The principal upanisads: By S. Radhakrishnan. : Unwin brothers.
Chicago-Zitierstil (17. Ausg.)Radhakrishnan, Sarvepalli. The Principal Upanisads: By S. Radhakrishnan. London: : Unwin brothers, 1953.
MLA-Zitierstil (8. Ausg.)Radhakrishnan, Sarvepalli. The Principal Upanisads: By S. Radhakrishnan. : Unwin brothers, 1953.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.