O N V Kurup. (1991). Thonnyaksharangal. D C Books.
Chicago Edition CitationO N V Kurup. Thonnyaksharangal. Kottayam: D C Books, 1991.
MLA Edition CitationO N V Kurup. Thonnyaksharangal. D C Books, 1991.
Warning: These citations may not always be 100% accurate.