വള്ളത്തോള് & Vallathol. (1991). നാലു ലഘുകാവ്യങ്ങള് (1st.). Awathy Printers.
Citação norma Chicagoവള്ളത്തോള് e Vallathol. നാലു ലഘുകാവ്യങ്ങള്. 1st. Thiruvilaamala: Awathy Printers, 1991.
Citação norma MLAവള്ളത്തോള് e Vallathol. നാലു ലഘുകാവ്യങ്ങള്. 1st. Awathy Printers, 1991.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.