Παραπομπή APA

Krishnankumar, S. (1975). Cherukida vyavasaya vikasanam Keralathil.

Παραπομπή Chicago Style

Krishnankumar, S. Cherukida Vyavasaya Vikasanam Keralathil. 1975.

Παραπομπή MLA

Krishnankumar, S. Cherukida Vyavasaya Vikasanam Keralathil. 1975.