P. Ramanathan. (1967). Kerala Charithra Kadhakal. Ulloor.
Chicago Edition CitationP. Ramanathan. Kerala Charithra Kadhakal. Ulloor: Ulloor, 1967.
MLA Edition CitationP. Ramanathan. Kerala Charithra Kadhakal. Ulloor, 1967.
Warning: These citations may not always be 100% accurate.