United States. Public Health Service. (1919). Vaccination, excellent form of health insurance. U.S. Government Printing Office.
Chicago Style (17th ed.) CitationUnited States. Public Health Service. Vaccination, Excellent Form of Health Insurance. [Washington, D.C.]: U.S. Government Printing Office, 1919.
MLA (9th ed.) CitationUnited States. Public Health Service. Vaccination, Excellent Form of Health Insurance. U.S. Government Printing Office, 1919.
Warning: These citations may not always be 100% accurate.