Cita APA (7th ed.)

Gonzales, E. G., & Robledo-Gonzales, C. M. (1990). National Internal Revenue Code (1990 rev. ed.). Published & distributed by Rex Book Store.

Cita Chicago (17th ed.)

Gonzales, Epifanio G., i Celestina M. Robledo-Gonzales. National Internal Revenue Code. 1990 rev. ed. Manila: Published & distributed by Rex Book Store, 1990.

Cita MLA (9th ed.)

Gonzales, Epifanio G., i Celestina M. Robledo-Gonzales. National Internal Revenue Code. 1990 rev. ed. Published & distributed by Rex Book Store, 1990.