एपीए उद्धरण

Rajan Gurukkal. (1999). Cultural history of kerala. Department of cultural publications.

शिकागो स्टाइल उद्धरण

Rajan Gurukkal. Cultural History of Kerala. Thiruvananthapuram: Department of cultural publications, 1999.

एमएलए उद्धरण

Rajan Gurukkal. Cultural History of Kerala. Department of cultural publications, 1999.