Villegas, R. (2007). Taxation needn't be so taxing. IN Greenlight [column]. Manila Standard Today.
Chicago-referens (17:e uppl.)Villegas, Raoul. "Taxation Needn't Be so Taxing. IN Greenlight [column]." Manila Standard Today 2007.
MLA-referens (9:e uppl.)Villegas, Raoul. "Taxation Needn't Be so Taxing. IN Greenlight [column]." Manila Standard Today, 2007.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.