एपीए उद्धरण

(1980). Statistical handbook of Kerala. Bureau, of economics and stastics.

शिकागो स्टाइल उद्धरण

Statistical Handbook of Kerala. Trivandrum: Bureau, of economics and stastics, 1980.

एमएलए उद्धरण

Statistical Handbook of Kerala. Bureau, of economics and stastics, 1980.