एपीए उद्धरण

Vishnu Narayanan Namboodiri. (1987). Pranayageethangal. Sahitya Pravartaka Co-operative Society.

शिकागो स्टाइल उद्धरण

Vishnu Narayanan Namboodiri. Pranayageethangal. Kottayam: Sahitya Pravartaka Co-operative Society, 1987.

एमएलए उद्धरण

Vishnu Narayanan Namboodiri. Pranayageethangal. Sahitya Pravartaka Co-operative Society, 1987.