APA (7th ed.) Citation

United States. Department of Health, Education, and Welfare. (1920). Amendment No. 1 to U.S. quarantine regulations, Public Health Service. GPO.

Chicago Style (17th ed.) Citation

United States. Department of Health, Education, and Welfare. Amendment No. 1 to U.S. Quarantine Regulations, Public Health Service. [Washington]: GPO, 1920.

MLA (9th ed.) Citation

United States. Department of Health, Education, and Welfare. Amendment No. 1 to U.S. Quarantine Regulations, Public Health Service. GPO, 1920.

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