Citazione Stile APA (7a Edizione)

Philippines. Bureau of Internal Revenue. (2001). Complete 2001 B.I.R. revenue regulations plus Republic Act No. 9010. Career Development Center.

Citazione stile Chigago Style (17a edizione)

Philippines. Bureau of Internal Revenue. Complete 2001 B.I.R. Revenue Regulations Plus Republic Act No. 9010. Quezon City: Career Development Center, 2001.

Citatione MLA (9a ed.)

Philippines. Bureau of Internal Revenue. Complete 2001 B.I.R. Revenue Regulations Plus Republic Act No. 9010. Career Development Center, 2001.