Duncano, D. A. (2016). National Internal Revenue Code of 1997 as amended: Updated with annotations. Anvil Publishing, Inc.
Citazione stile Chigago Style (17a edizione)Duncano, Danilo A. National Internal Revenue Code of 1997 as Amended: Updated with Annotations. Mandaluyong City: Anvil Publishing, Inc, 2016.
Citatione MLA (9a ed.)Duncano, Danilo A. National Internal Revenue Code of 1997 as Amended: Updated with Annotations. Anvil Publishing, Inc, 2016.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.