Columbia subject headings:
Harvard subject headings:
Books--Germany--Mainz (Rhineland-Palatinate)--History--Exhibitions.
Gutenberg-Museum Mainz--Exhibitions.
Printing--History--Exhibitions
Stadtbibliothek Mainz (Rhineland-Palatinate, Germany)--Exhibitions.
Writing--History--Exhibitions.
Princeton subject headings:
Books--Germany--Mainz (Rhineland-Palatinate)--Exhibitions.
Gutenberg-Museum Mainz--Exhibitions.
Printing--History--Exhibitions.
Stadtbibliothek Mainz (Rhineland-Palatinate, Germany)--Exhibitions.
Writing--History--Exhibitions.