Guptan, R. (1976). Samuhya Vikasanavaum Vyapanavum. State Institute of Languages.
Chicago Edition CitationGuptan, R.K. Samuhya Vikasanavaum Vyapanavum. Trivandrum: State Institute of Languages, 1976.
Cita MLAGuptan, R.K. Samuhya Vikasanavaum Vyapanavum. State Institute of Languages, 1976.
Atenció: Aquestes cites poden no estar 100% correctes.