एपीए उद्धरण

(1995). Kerala. Director Census Operation: Census of India 1991. series-12: Kerala. Director of Census Operations.

शिकागो स्टाइल उद्धरण

Kerala. Director Census Operation: Census of India 1991. Series-12: Kerala. New Delhi: Director of Census Operations, 1995.

एमएलए उद्धरण

Kerala. Director Census Operation: Census of India 1991. Series-12: Kerala. Director of Census Operations, 1995.