एपीए उद्धरण

K.Narayanan. (1972). District census handbook: Trivandrum:census:1971. Government of Kerala.

शिकागो स्टाइल उद्धरण

K.Narayanan. District Census Handbook: Trivandrum:census:1971. Government of Kerala, 1972.

एमएलए उद्धरण

K.Narayanan. District Census Handbook: Trivandrum:census:1971. Government of Kerala, 1972.