Pilla, G. R. (1972). Vanijyaparamaya Kattitapatukal. State Institute of language.
Chicago Edition CitationPilla, G R. Vanijyaparamaya Kattitapatukal. Trivandrum: State Institute of language, 1972.
MLA Edition CitationPilla, G R. Vanijyaparamaya Kattitapatukal. State Institute of language, 1972.
Warning: These citations may not always be 100% accurate.