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.
Παραπομπή σε μορφή Chicago (17η εκδ.)Philippines (Republic). Bureau of Internal Revenue και 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.
Παραπομπή σε μορφή MLA (9th εκδ.)Philippines (Republic). Bureau of Internal Revenue και 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.
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