Citazione Stile APA (7a Edizione)

De Leon, H. S. (1994). The National Internal Revenue Code annotated: P.D. no. 1158, as amended (5th ed.). Published & distributed by Rex Book Store.

Citazione stile Chigago Style (17a edizione)

De Leon, Hector S. The National Internal Revenue Code Annotated: P.D. No. 1158, as Amended. 5th ed. Manila, Philippines: Published & distributed by Rex Book Store, 1994.

Citatione MLA (9a ed.)

De Leon, Hector S. The National Internal Revenue Code Annotated: P.D. No. 1158, as Amended. 5th ed. Published & distributed by Rex Book Store, 1994.