APA-referens (7:e uppl.)

(1967). National internal revenue code and allied special laws (in force and effect July 1,1939) (1967 3rd ed.). Central Book Supply.

Chicago-referens (17:e uppl.)

National Internal Revenue Code and Allied Special Laws (in Force and Effect July 1,1939). 1967 3rd ed. Manila: Central Book Supply, 1967.

MLA-referens (9:e uppl.)

National Internal Revenue Code and Allied Special Laws (in Force and Effect July 1,1939). 1967 3rd ed. Central Book Supply, 1967.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.