एपीए उद्धरण

RAVARMA AMBALAPUZHA. PROF. (2010). KERALATHILE PRACHEENAKALAKAL. NATIONAL BOOK STALL.

शिकागो स्टाइल उद्धरण

RAVARMA AMBALAPUZHA. PROF. KERALATHILE PRACHEENAKALAKAL. Kottayam: NATIONAL BOOK STALL, 2010.

एमएलए उद्धरण

RAVARMA AMBALAPUZHA. PROF. KERALATHILE PRACHEENAKALAKAL. NATIONAL BOOK STALL, 2010.