ഉള്ളൂർ എസ്. പരമേശ്വരയ്യർ. Ulloor S Parameswara Aiyer. (1970). കേരളസാഹിത്യചരിത്രം: Kerala Sahithya Charitram. Department of Publications,for the University of kerala.
Stile di citazione Chicagoഉള്ളൂർ എസ്. പരമേശ്വരയ്യർ. Ulloor S Parameswara Aiyer. കേരളസാഹിത്യചരിത്രം: Kerala Sahithya Charitram. Thiruvananthapuram: Department of Publications,for the University of kerala, 1970.
Citazione MLAഉള്ളൂർ എസ്. പരമേശ്വരയ്യർ. Ulloor S Parameswara Aiyer. കേരളസാഹിത്യചരിത്രം: Kerala Sahithya Charitram. Department of Publications,for the University of kerala, 1970.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.