APA aipamena

Kesavan, N. R. (1971). Gramavikasanam. State institute of languages.

Chicago Style aipamena

Kesavan, Nair R. Gramavikasanam. Trivandrum: State institute of languages, 1971.

MLA aipamena

Kesavan, Nair R. Gramavikasanam. State institute of languages, 1971.