APA (7th ed.) Citation

Philippines (Commonwealth) Laws, statutes, etc. (1977). National internal revenue code, Commonwealth act no. 446. (In force and effect July 1, 1939) [microform]. Photoduplication Service, University of the Philippines Library.

Chicago Style (17th ed.) Citation

Philippines (Commonwealth) Laws, statutes, etc. National Internal Revenue Code, Commonwealth Act No. 446. (In Force and Effect July 1, 1939) [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1977.

MLA (9th ed.) Citation

Philippines (Commonwealth) Laws, statutes, etc. National Internal Revenue Code, Commonwealth Act No. 446. (In Force and Effect July 1, 1939) [microform]. Photoduplication Service, University of the Philippines Library, 1977.