Columbia subject headings:
Harvard subject headings:
Mainz (Rhineland-Palatinate, Germany)--History--Sources.
Municipal government--Germany--Mainz (Rhineland-Palatinate)--History--Sources.
Princeton subject headings:
Mainz (Rhineland-Palatinate, Germany). Mairie--History--Sources.
Municipal government--Germany--Mainz (Rhineland-Palatinate)--History--Sources.