एपीए उद्धरण

Raghavan Puthuppally. (1999). Sakhavu R.Sugathan. Current Books.

शिकागो स्टाइल उद्धरण

Raghavan Puthuppally. Sakhavu R.Sugathan. Kottayam: Current Books, 1999.

एमएलए उद्धरण

Raghavan Puthuppally. Sakhavu R.Sugathan. Current Books, 1999.