Villegas, R. (2007). Taxation needn't be so taxing. IN Greenlight [column]. Manila Standard Today.
Chicago Style aipamenaVillegas, Raoul. "Taxation Needn't Be so Taxing. IN Greenlight [column]." Manila Standard Today 2007.
MLA aipamenaVillegas, Raoul. "Taxation Needn't Be so Taxing. IN Greenlight [column]." Manila Standard Today, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.