Citazione Stile APA (7a Edizione)

Gonzales, E. G., & Robledo-Gonzales, C. M. (1997). National internal revenue code of 1977, with annotations and implementing regulations (Rev. ed.). Rex Book Store.

Citazione stile Chigago Style (17a edizione)

Gonzales, Epifanio G., e Celestina M. Robledo-Gonzales. National Internal Revenue Code of 1977, with Annotations and Implementing Regulations. Rev. ed. Manila: Rex Book Store, 1997.

Citatione MLA (9a ed.)

Gonzales, Epifanio G., e Celestina M. Robledo-Gonzales. National Internal Revenue Code of 1977, with Annotations and Implementing Regulations. Rev. ed. Rex Book Store, 1997.