Παραπομπή APA

(1995). Kerala. Director Census Operation: Census of India 1991. series-12: Kerala. Director of Census Operations.

Παραπομπή Chicago Style

Kerala. Director Census Operation: Census of India 1991. Series-12: Kerala. New Delhi: Director of Census Operations, 1995.

Παραπομπή MLA

Kerala. Director Census Operation: Census of India 1991. Series-12: Kerala. Director of Census Operations, 1995.