एपीए उद्धरण

Mathew Ulakamthara. (1995). I. C. Chacko. Government of Kerala.

शिकागो स्टाइल उद्धरण

Mathew Ulakamthara. I. C. Chacko. Thiruvanathapuram: Government of Kerala, 1995.

एमएलए उद्धरण

Mathew Ulakamthara. I. C. Chacko. Government of Kerala, 1995.