APA (7th ed.) Citation

United States. Department of the Treasury. (1921). Cumulative bulletin No. 4, income tax rulings. GPO.

Chicago Style (17th ed.) Citation

United States. Department of the Treasury. Cumulative Bulletin No. 4, Income Tax Rulings. [Washington]: GPO, 1921.

MLA (9th ed.) Citation

United States. Department of the Treasury. Cumulative Bulletin No. 4, Income Tax Rulings. GPO, 1921.

Warning: These citations may not always be 100% accurate.