Columbia subject headings:
Archives--United States--Catalogs.
Health boards--United States--Bibliography--Catalogs.
Health boards--United States--Bibliography.
National Board of Health (U.S.)--Archives--Catalogs.
National Board of Health (U.S.)--Bibliography.
Public health--United States--Bibliography--Catalogs.
Public health--United States--Bibliography.
Harvard subject headings:
Archives--United States--Catalogs
Health boards--United States--Bibliography--Catalogs.
Health boards--United States--Bibliography.
National Board of Health (U.S.)--Archives--Catalogs.
National Board of Health (U.S.)--Bibliography.
Public health--United States--Bibliography--Catalogs.
Public health--United States--Bibliography.
Princeton subject headings: