एपीए उद्धरण

Varma, C. R. R. (2000). Prakrithijeevanam (5th ed.). Kerala bhasha institute.

शिकागो स्टाइल उद्धरण

Varma, C. R. R. Prakrithijeevanam. 5th ed. TVM: Kerala bhasha institute, 2000.

एमएलए उद्धरण

Varma, C. R. R. Prakrithijeevanam. 5th ed. Kerala bhasha institute, 2000.