(1998). BIR Tax calendar: BIR enters the age of information technology. Bureau of Internal Revenue.
Citace podle Chicago (17th ed.)BIR Tax Calendar: BIR Enters the Age of Information Technology. s.l: Bureau of Internal Revenue, 1998.
Citace podle MLA (9th ed.)BIR Tax Calendar: BIR Enters the Age of Information Technology. Bureau of Internal Revenue, 1998.
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