Balbir Singh. (1983). Philosophy of Upanishads. Arnold Heinemann.
Chicago Style aipamenaBalbir Singh. Philosophy of Upanishads. New Delhi: Arnold Heinemann, 1983.
MLA aipamenaBalbir Singh. Philosophy of Upanishads. Arnold Heinemann, 1983.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.