Philippines (Republic) Bureau of Internal Revenue & Philippines (Republic). Bureau of Internal Revenue. Income tax primer. National Media Production Center.
芝加哥风格引文Philippines (Republic) Bureau of Internal Revenue 与 Philippines (Republic). Bureau of Internal Revenue. Income Tax Primer. [Manila: National Media Production Center.
MLA引文Philippines (Republic) Bureau of Internal Revenue 与 Philippines (Republic). Bureau of Internal Revenue. Income Tax Primer. National Media Production Center.
警告：这些引文格式不一定是100％准确.