Unnikrishnan, P. (1974). Ilaktronine Kantettal. State Institute of Languages.
Chicago Style aipamenaUnnikrishnan, P. Ilaktronine Kantettal. Trivandrum: State Institute of Languages, 1974.
MLA aipamenaUnnikrishnan, P. Ilaktronine Kantettal. State Institute of Languages, 1974.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.