Παραπομπή APA

Sethumadhavan Koyithatta. (2017). Koopasasthra prakashika. DC.

Παραπομπή Chicago Style

Sethumadhavan Koyithatta. Koopasasthra Prakashika. Kottayam: DC, 2017.

Παραπομπή MLA

Sethumadhavan Koyithatta. Koopasasthra Prakashika. DC, 2017.