Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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