പി കെ ബാലകൃഷ്ണന് & P K Balakrishnan. (1976). കാവ്യകല കുമാരനാശാനിലൂടെ (2nd. (1st 1970).). Sahitya Pravarthaka Co-operative Society Ltd..
Trích dẫn kiểu Chicagoപി കെ ബാലകൃഷ്ണന് và P K Balakrishnan. കാവ്യകല കുമാരനാശാനിലൂടെ. 2nd. (1st 1970). Kottayam: Sahitya Pravarthaka Co-operative Society Ltd., 1976.
Trích dẫn MLAപി കെ ബാലകൃഷ്ണന് và P K Balakrishnan. കാവ്യകല കുമാരനാശാനിലൂടെ. 2nd. (1st 1970). Sahitya Pravarthaka Co-operative Society Ltd., 1976.
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