harvardnr1.PNG

Links
- https://www.igw.uni-bonn.de/medien/medienordner-abtl-fruehe-neuzeit-und-rhein-landesgeschichte/datendonner/reading-harvard-views-of-readers-readership-and-reading-history/harvardnr1.png/image_view_fullscreen
- https://www.igw.uni-bonn.de/medien/medienordner-abtl-fruehe-neuzeit-und-rhein-landesgeschichte/datendonner/reading-harvard-views-of-readers-readership-and-reading-history/harvardnr1.png/@@download/image/harvardnr1.PNG