APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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