Philippines (Republic) Laws, statutes, etc, & Barredo, L. S. (1969). Compilation of Philippine tobacco laws, revenue regulations on articles subject to specific taxes (with amendments on the omnibus tax bill) Comp. and codified. [s.n.].
Chicago-referens (17:e uppl.)Philippines (Republic) Laws, statutes, etc, och Lorenzo S. Barredo. Compilation of Philippine Tobacco Laws, Revenue Regulations on Articles Subject to Specific Taxes (with Amendments on the Omnibus Tax Bill) Comp. and Codified. Manila: [s.n.], 1969.
MLA-referens (9:e uppl.)Philippines (Republic) Laws, statutes, etc, och Lorenzo S. Barredo. Compilation of Philippine Tobacco Laws, Revenue Regulations on Articles Subject to Specific Taxes (with Amendments on the Omnibus Tax Bill) Comp. and Codified. [s.n.], 1969.