Παραπομπή APA

Ravindran. (2009). Ente keralam (3rd ed.). Mathrubhumi Books.

Παραπομπή Chicago Style

Ravindran. Ente Keralam. 3rd ed. Kozhikode: Mathrubhumi Books, 2009.

Παραπομπή MLA

Ravindran. Ente Keralam. 3rd ed. Mathrubhumi Books, 2009.