एपीए उद्धरण

Mattantarakan, P., & Ramanmenon, P. (1973). Visvadipam. Sahitya Pravarthaka Co-operative Society Ltd.

शिकागो स्टाइल उद्धरण

Mattantarakan, Puttankavu, और Puthezhatu Ramanmenon. Visvadipam. Kottayam: Sahitya Pravarthaka Co-operative Society Ltd, 1973.

एमएलए उद्धरण

Mattantarakan, Puttankavu, और Puthezhatu Ramanmenon. Visvadipam. Sahitya Pravarthaka Co-operative Society Ltd, 1973.