APA-referens (7:e uppl.)

Philippines (Commonwealth) & Philippines (Republic). (1940). National internal revenue code: Commonwealth act no. 466, as amended, in force and effect July 1, 1939. Republic of the Philippines, Bureau of Printing.

Chicago-referens (17:e uppl.)

Philippines (Commonwealth) och Philippines (Republic). National Internal Revenue Code: Commonwealth Act No. 466, as Amended, in Force and Effect July 1, 1939. Manila: Republic of the Philippines, Bureau of Printing, 1940.

MLA-referens (9:e uppl.)

Philippines (Commonwealth) och Philippines (Republic). National Internal Revenue Code: Commonwealth Act No. 466, as Amended, in Force and Effect July 1, 1939. Republic of the Philippines, Bureau of Printing, 1940.