एपीए उद्धरण

Vasudevan Nair, M. Daya Enna Penkutty. P.K. Brothers.

शिकागो स्टाइल उद्धरण

Vasudevan Nair, M.T. Daya Enna Penkutty. Calicut: P.K. Brothers.

एमएलए उद्धरण

Vasudevan Nair, M.T. Daya Enna Penkutty. P.K. Brothers.