APA (7th ed.) Citation

(1977). The National Internal Revenue Code of 1977 (P.D. No. 1158, as amended up to Batasang Pambansa Blg. 5). Rex Book Store.

Chicago Style (17th ed.) Citation

The National Internal Revenue Code of 1977 (P.D. No. 1158, as Amended Up to Batasang Pambansa Blg. 5). Manila: Rex Book Store, 1977.

MLA (9th ed.) Citation

The National Internal Revenue Code of 1977 (P.D. No. 1158, as Amended Up to Batasang Pambansa Blg. 5). Rex Book Store, 1977.