एपीए उद्धरण

Ramachandra Menon, P. (1998). Jyamitiyude kalithottil (cradle of geometry-Malayalam) (3rd ed.). Kerala Sastra Sahitya Parishad.

शिकागो स्टाइल उद्धरण

Ramachandra Menon, P. Jyamitiyude Kalithottil (cradle of Geometry-Malayalam). 3rd ed. Kochi: Kerala Sastra Sahitya Parishad, 1998.

एमएलए उद्धरण

Ramachandra Menon, P. Jyamitiyude Kalithottil (cradle of Geometry-Malayalam). 3rd ed. Kerala Sastra Sahitya Parishad, 1998.