APA aipamena

Radhakrishnan, S. E. (1989). The Principal upanishads.

Chicago Style aipamena

Radhakrishnan, S; Ed. The Principal Upanishads. New Delhi, OUP, 1989.

MLA aipamena

Radhakrishnan, S; Ed. The Principal Upanishads. 1989.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.