Rajan, K. C. (1980). Prottokordettukal. State Institute of Languages.
Chicago Edition CitationRajan, K C. Prottokordettukal. Trivandrum: State Institute of Languages, 1980.
MLA Edition CitationRajan, K C. Prottokordettukal. State Institute of Languages, 1980.
Warning: These citations may not always be 100% accurate.