APA (7th ed.) Citation

(1918). Regulations No. 41 relative to war excess profits tax imposed by War Revenue Act, approved Oct. 3, 1917. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Regulations No. 41 Relative to War Excess Profits Tax Imposed by War Revenue Act, Approved Oct. 3, 1917. [Washington, D.C.]: U.S. Government Printing Office, 1918.

MLA (9th ed.) Citation

Regulations No. 41 Relative to War Excess Profits Tax Imposed by War Revenue Act, Approved Oct. 3, 1917. U.S. Government Printing Office, 1918.