Guptan, R. (1976). Samuhya Vikasanavaum Vyapanavum. State Institute of Languages.
Chicago Edition CitationGuptan, R.K. Samuhya Vikasanavaum Vyapanavum. Trivandrum: State Institute of Languages, 1976.
MLA引文Guptan, R.K. Samuhya Vikasanavaum Vyapanavum. State Institute of Languages, 1976.
警告:這些引文格式不一定是100%准確.