Venganoor Balakrishnan. (2009). 108 Upanishads. Arshashri publishing co.
Chicago Style aipamenaVenganoor Balakrishnan. 108 Upanishads. Trivandrum: Arshashri publishing co, 2009.
MLA aipamenaVenganoor Balakrishnan. 108 Upanishads. Arshashri publishing co, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.