APA (7th ed.) Citation

Philippines & Catindig, T. A. (1998). The national internal revenue code of 1997. Catindig.

Chicago Style (17th ed.) Citation

Philippines and Tristan A. Catindig. The National Internal Revenue Code of 1997. Metro Manila: Catindig, 1998.

MLA (9th ed.) Citation

Philippines and Tristan A. Catindig. The National Internal Revenue Code of 1997. Catindig, 1998.

Warning: These citations may not always be 100% accurate.