एपीए उद्धरण

Narayanan, P. V., & Sreedevi, K. P. (2018). Professor S Venkatakrishnan: Smrtirekhakal, krthikal, patanam. Pusthakabhavan.

शिकागो स्टाइल उद्धरण

Narayanan, P V., और K P. Sreedevi. Professor S Venkatakrishnan: Smrtirekhakal, Krthikal, Patanam. Payyannur, Kannur: Pusthakabhavan, 2018.

एमएलए उद्धरण

Narayanan, P V., और K P. Sreedevi. Professor S Venkatakrishnan: Smrtirekhakal, Krthikal, Patanam. Pusthakabhavan, 2018.