Philippines. Bureau of Internal Revenue. (2000). Complete 2000 B.I.R. revenue regulations plus Republic Act No. 8761. Career Development Center.
Citação do estilo Chicago (17ª ed.)Philippines. Bureau of Internal Revenue. Complete 2000 B.I.R. Revenue Regulations Plus Republic Act No. 8761. Quezon City: Career Development Center, 2000.
Citação MLA (9ª ed.)Philippines. Bureau of Internal Revenue. Complete 2000 B.I.R. Revenue Regulations Plus Republic Act No. 8761. Career Development Center, 2000.
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