Kesavannayar, R. (1971). Gramavikasanam. State Institute of Languages.
Chicago Edition CitationKesavannayar, R. Gramavikasanam. Trivandrum: State Institute of Languages, 1971.
Cita MLAKesavannayar, R. Gramavikasanam. State Institute of Languages, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.