Philippines (Republic). Bureau of Internal Revenue & Philippines (Republic). (1960). National internal revenue code: Commonwealth Act no. 466 as amended up to June, 1957 (In force and effect July 1, 1939). Bureau of Printing.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Philippines (Republic). Bureau of Internal Revenue و Philippines (Republic). National Internal Revenue Code: Commonwealth Act No. 466 as Amended Up to June, 1957 (In Force and Effect July 1, 1939). Manila: Bureau of Printing, 1960.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Philippines (Republic). Bureau of Internal Revenue و Philippines (Republic). National Internal Revenue Code: Commonwealth Act No. 466 as Amended Up to June, 1957 (In Force and Effect July 1, 1939). Bureau of Printing, 1960.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.