APA (7th ed.) Citation

(1922). Amendment to U.S. Public Health Service Circular Letter No. 247. [publisher not identified].

Chicago Style (17th ed.) Citation

Amendment to U.S. Public Health Service Circular Letter No. 247. [Washington]: [publisher not identified], 1922.

MLA (9th ed.) Citation

Amendment to U.S. Public Health Service Circular Letter No. 247. [publisher not identified], 1922.

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