APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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