एपीए उद्धरण

(1991). Kerala, Director of Census Operations. Census of India 1991, Series 12. Kerala. Director of Census Operations.

शिकागो स्टाइल उद्धरण

Kerala, Director of Census Operations. Census of India 1991, Series 12. Kerala. Trivandrum: Director of Census Operations, 1991.

एमएलए उद्धरण

Kerala, Director of Census Operations. Census of India 1991, Series 12. Kerala. Director of Census Operations, 1991.