APA

Ramakrishna Pillai K., . (1971). Sampilana survey (m). : State Institute of Languages, TVPM.

Chicago

Ramakrishna Pillai K, . 1971. Sampilana survey (m). : State Institute of Languages, TVPM.

Harvard

Ramakrishna Pillai K., . (1971). Sampilana survey (m). : State Institute of Languages, TVPM.

MLA

Ramakrishna Pillai K, . Sampilana survey (m). : State Institute of Languages, TVPM. 1971.