एपीए उद्धरण

Harikumar. (1979). Kukumam Vitariya Vashikal. Sahitya Pravarthaka Co-operative Society Ltd.

शिकागो स्टाइल उद्धरण

Harikumar. Kukumam Vitariya Vashikal. Kottayam: Sahitya Pravarthaka Co-operative Society Ltd, 1979.

एमएलए उद्धरण

Harikumar. Kukumam Vitariya Vashikal. Sahitya Pravarthaka Co-operative Society Ltd, 1979.