Παραπομπή APA

Vishnu Narayanan Namboodiri. (1971). Pranayageethangal.

Παραπομπή Chicago Style

Vishnu Narayanan Namboodiri. Pranayageethangal. Kottayam, N B S, 1971.

Παραπομπή MLA

Vishnu Narayanan Namboodiri. Pranayageethangal. 1971.