एपीए उद्धरण

Kesavadev, P. (1969). Ulakka. Sahitya Pravarthaka Co-operative Society Ltd.

शिकागो स्टाइल उद्धरण

Kesavadev, P. Ulakka. Kottayam: Sahitya Pravarthaka Co-operative Society Ltd, 1969.

एमएलए उद्धरण

Kesavadev, P. Ulakka. Sahitya Pravarthaka Co-operative Society Ltd, 1969.