APA

Kesavan Nair R., . (1971). Gramavikasanam (m). : State Institute of Languages, TVPM.

Chicago

Kesavan Nair R, . 1971. Gramavikasanam (m). : State Institute of Languages, TVPM.

Harvard

Kesavan Nair R., . (1971). Gramavikasanam (m). : State Institute of Languages, TVPM.

MLA

Kesavan Nair R, . Gramavikasanam (m). : State Institute of Languages, TVPM. 1971.