Catindig, T. A. (1998). The national internal revenue code of 1997 [effective January 1, 1998]. Catindig Tiongco & Nibungco.
Citazione stile Chigago Style (17a edizione)Catindig, Tristan A. The National Internal Revenue Code of 1997 [effective January 1, 1998]. Pasig City: Catindig Tiongco & Nibungco, 1998.
Citatione MLA (9a ed.)Catindig, Tristan A. The National Internal Revenue Code of 1997 [effective January 1, 1998]. Catindig Tiongco & Nibungco, 1998.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.