ബാലകൃഷ്ണ൯ പി കെ & Balakrishnan P K. (1989). നിദ്രാസഞ്ചാരങ്ങള് (1st.). Poorna Publishers.
Citação norma Chicagoബാലകൃഷ്ണ൯ പി കെ and Balakrishnan P K. നിദ്രാസഞ്ചാരങ്ങള്. 1st. Kozhikode: Poorna Publishers, 1989.
Citação norma MLAബാലകൃഷ്ണ൯ പി കെ and Balakrishnan P K. നിദ്രാസഞ്ചാരങ്ങള്. 1st. Poorna Publishers, 1989.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.