United States. Department of Health, Education, and Welfare. (1921). [Appointment and promotion of employees of Public Health Service; modification]. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Department of Health, Education, and Welfare. [Appointment and Promotion of Employees of Public Health Service; Modification]. [Washington]: [publisher not identified], 1921.
MLA (9th ed.) CitationUnited States. Department of Health, Education, and Welfare. [Appointment and Promotion of Employees of Public Health Service; Modification]. [publisher not identified], 1921.
Warning: These citations may not always be 100% accurate.