പി സുബ്ബയ്യാപിള്ള & P Subbayya Pillai. (1968). പ്രതികാരം (1st.). Sahitya Pravarthaka Co-operative Society Ltd.
Citação norma Chicagoപി സുബ്ബയ്യാപിള്ള and P Subbayya Pillai. പ്രതികാരം. 1st. Kottayam: Sahitya Pravarthaka Co-operative Society Ltd, 1968.
Citação norma MLAപി സുബ്ബയ്യാപിള്ള and P Subbayya Pillai. പ്രതികാരം. 1st. Sahitya Pravarthaka Co-operative Society Ltd, 1968.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.