Columbia subject headings:
Booksellers and bookselling--History.
Booksellers and bookselling--Italy--Genoa.
Harvard subject headings:
Booksellers and bookselling--History--Middle Ages.
Booksellers and bookselling--Italy--Genoa.
Princeton subject headings:
Booksellers and bookselling--History--Middle Ages.
Booksellers and bookselling--Italy--Genoa.