Philippines (Commonwealth) & Philippines (Republic). (1940). National internal revenue code: Commonwealth act no. 466, as amended, in force and effect July 1, 1939. Republic of the Philippines, Bureau of Printing.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Philippines (Commonwealth) و Philippines (Republic). National Internal Revenue Code: Commonwealth Act No. 466, as Amended, in Force and Effect July 1, 1939. Manila: Republic of the Philippines, Bureau of Printing, 1940.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Philippines (Commonwealth) و Philippines (Republic). National Internal Revenue Code: Commonwealth Act No. 466, as Amended, in Force and Effect July 1, 1939. Republic of the Philippines, Bureau of Printing, 1940.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.