Columbia subject headings:
Harvard subject headings:
Cholera--Germany--Hamburg--History--19th century--Exhibitions.
Hygienisches Institut (Hamburg, Germany). Sielklär-Versuchsstation--Library--Catalogs.
Public health--Germany--Hamburg--History--19th century--Exhibitions.
Sanitation--Germany--Hamburg--History--19th century--Exhibitions.
Sewage--Purification--Germany--Hamburg--History--19th century--Exhibitions.
Technische Universitat Hamburg-Harburg. Universitätsbibliothek--Catalogs.
Princeton subject headings:
Cholera--Germany--Hamburg--History--19th century--Exhibitions.
Public health--Germany--Hamburg--History--19th century--Exhibitions.
Sanitation--Germany--Hamburg--History--19th century--Exhibitions.
Sewage--Purification--Germany--Hamburg--History--19th century--Exhibitions.
Sielklär-Versuchsstation Hamburg-Eppendorf--Library--Catalogs.
Technische Universität Hamburg-Harburg. Universitätsbibliothek--Catalogs.