APA aipamena

Venugopalan, P. (2011). O.N.V. ente gurunathan. D C Books.

Chicago Style aipamena

Venugopalan, P. O.N.V. Ente Gurunathan. Kottayam: D C Books, 2011.

MLA aipamena

Venugopalan, P. O.N.V. Ente Gurunathan. D C Books, 2011.