Philippines. Bureau of Internal Revenue & Career Development Center. (2004). Complete 2003 B.I.R revenue regulations. CDC.
Citazione stile Chigago Style (17a edizione)Philippines. Bureau of Internal Revenue e Career Development Center. Complete 2003 B.I.R Revenue Regulations. Quezon City: CDC, 2004.
Citatione MLA (9a ed.)Philippines. Bureau of Internal Revenue e Career Development Center. Complete 2003 B.I.R Revenue Regulations. CDC, 2004.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.