Cita APA

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.

Citación estilo Chicago

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.

Cita MLA

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.