एपीए उद्धरण

Olappamanna. (1980). Dhukhamavuka Sukham. Sahitya Pravarthaka Co-operative Society Ltd.

शिकागो स्टाइल उद्धरण

Olappamanna. Dhukhamavuka Sukham. Kottayam: Sahitya Pravarthaka Co-operative Society Ltd, 1980.

एमएलए उद्धरण

Olappamanna. Dhukhamavuka Sukham. Sahitya Pravarthaka Co-operative Society Ltd, 1980.