Παραπομπή APA

Challappan Nair. N. P. (1975). Kathakal, Karyangal, Kathayillaymakal. N.B.S.

Παραπομπή Chicago Style

Challappan Nair. N. P. Kathakal, Karyangal, Kathayillaymakal. Kottayam: N.B.S, 1975.

Παραπομπή MLA

Challappan Nair. N. P. Kathakal, Karyangal, Kathayillaymakal. N.B.S, 1975.