एपीए उद्धरण

Guptan, R. (1976). Samuhya Vikasanavaum Vyapanavum. State Institute of Languages.

शिकागो स्टाइल उद्धरण

Guptan, R.K. Samuhya Vikasanavaum Vyapanavum. Trivandrum: State Institute of Languages, 1976.

एमएलए उद्धरण

Guptan, R.K. Samuhya Vikasanavaum Vyapanavum. State Institute of Languages, 1976.