एपीए उद्धरण

Narayanan P V & Sreedevi K P. (2018). Professor S Venkatakrishnan smritirekhakal, krithikal,patanam. Pusthakabhavan.

शिकागो स्टाइल उद्धरण

Narayanan P V और Sreedevi K P. Professor S Venkatakrishnan Smritirekhakal, Krithikal,patanam. Kannur: Pusthakabhavan, 2018.

एमएलए उद्धरण

Narayanan P V और Sreedevi K P. Professor S Venkatakrishnan Smritirekhakal, Krithikal,patanam. Pusthakabhavan, 2018.