Columbia subject headings:
Harvard subject headings:
Biblioteca nazionale centrale di Roma. Manuscript. Vittorio Emanuele 273.
Chess--Bibliography
Chess--Early works to 1800
Chess--History--To 1500.
Princeton subject headings:
Biblioteca nazionale centrale di Roma. Manuscript. Vittorio Emanuele 272
Chess--Early works to 1800.
Chess--Manuscripts.
Manuscripts, Medieval.