Vellayani Arjunan. (1981). Sarva Vijnanakosham Vol 6.
Chicago Edition CitationVellayani Arjunan. Sarva Vijnanakosham Vol 6. State Institute of Encyclopedic Publications Thiruvananthapuram, 1981.
MLA Edition CitationVellayani Arjunan. Sarva Vijnanakosham Vol 6. 1981.
Warning: These citations may not always be 100% accurate.