Ramachandran Nair K K. History of Travancore. Government of Kerala.
Chicago Style aipamenaRamachandran Nair K K. History of Travancore. [s.l]: Government of Kerala.
MLA aipamenaRamachandran Nair K K. History of Travancore. Government of Kerala.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.