Columbia subject headings:
Harvard subject headings:
Biblioteca apostolica vaticana--Catalogs.
Humanists--Italy--15th century.
Nicholas V, Pope, 1397-1455.
Pietro Odo da Montopoli, approximately 1425-1463?
Tortelli, Giovanni, approximately 1400-1466. De orthographia.
Princeton subject headings:
Biblioteca apostolica vaticana--Catalogs.
Catalogs.
Manuscripts, Latin--Vatican City--Catalogs.
Nicholas V, Pope, 1397-1455--Library--Catalogs.
Pietro Odo da Montopoli, approximately 1425-1463?
Private libraries--Vatican City--Catalogs.
Tortelli, Giovanni, approximately 1400-1466. De orthographia.