एपीए उद्धरण

Unni, K. (2004). Fossilukalil undayirunnathu. Current books.

शिकागो स्टाइल उद्धरण

Unni, K.P. Fossilukalil Undayirunnathu. Kottayam: Current books, 2004.

एमएलए उद्धरण

Unni, K.P. Fossilukalil Undayirunnathu. Current books, 2004.