Gonzales, E. G., & Robledo-Gonzales, C. M. (1990). National Internal Revenue Code (1990 rev. ed.). Published & distributed by Rex Book Store.
Citazione stile Chigago Style (17a edizione)Gonzales, Epifanio G., e Celestina M. Robledo-Gonzales. National Internal Revenue Code. 1990 rev. ed. Manila: Published & distributed by Rex Book Store, 1990.
Citatione MLA (9a ed.)Gonzales, Epifanio G., e Celestina M. Robledo-Gonzales. National Internal Revenue Code. 1990 rev. ed. Published & distributed by Rex Book Store, 1990.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.