Cita APA (7th ed.)

(1998). BIR Tax calendar: BIR enters the age of information technology. Bureau of Internal Revenue.

Cita Chicago (17th ed.)

BIR Tax Calendar: BIR Enters the Age of Information Technology. s.l: Bureau of Internal Revenue, 1998.

Cita MLA (9th ed.)

BIR Tax Calendar: BIR Enters the Age of Information Technology. Bureau of Internal Revenue, 1998.