Vishnu Narayanan Namboodiri. (1971). Pranayageethangal.
Chicago Edition CitationVishnu Narayanan Namboodiri. Pranayageethangal. Kottayam, N B S, 1971.
MLA Edition CitationVishnu Narayanan Namboodiri. Pranayageethangal. 1971.
Warning: These citations may not always be 100% accurate.