Prasannan, R. (1969). Niyamam, Sadacaram, Aslila Sahityam. Sahitya Pravarthaka Co-operative Society Ltd.
シカゴスタイル引用形Prasannan, R. Niyamam, Sadacaram, Aslila Sahityam. Kottayam: Sahitya Pravarthaka Co-operative Society Ltd, 1969.
MLA引用形式Prasannan, R. Niyamam, Sadacaram, Aslila Sahityam. Sahitya Pravarthaka Co-operative Society Ltd, 1969.
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