Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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