APA (7th ed.) Citation

(1919). Regulations 45 relating to income tax and war profits and excess profits tax under Revenue Act of 1918. GPO.

Chicago Style (17th ed.) Citation

Regulations 45 Relating to Income Tax and War Profits and Excess Profits Tax Under Revenue Act of 1918. [Washington]: GPO, 1919.

MLA (9th ed.) Citation

Regulations 45 Relating to Income Tax and War Profits and Excess Profits Tax Under Revenue Act of 1918. GPO, 1919.