एपीए उद्धरण

Prasannan, R. (1969). Niyamam, Sadacaram, Aslila Sahityam. Sahitya Pravarthaka Co-operative Society Ltd.

शिकागो स्टाइल उद्धरण

Prasannan, R. Niyamam, Sadacaram, Aslila Sahityam. Kottayam: Sahitya Pravarthaka Co-operative Society Ltd, 1969.

एमएलए उद्धरण

Prasannan, R. Niyamam, Sadacaram, Aslila Sahityam. Sahitya Pravarthaka Co-operative Society Ltd, 1969.