Columbia subject headings:
Amato, di Montecassino, active 11th century. Storia de' normanni--Criticism and interpretation.
Italy, Southern--History--535-1268--Sources.
Malaterra, Goffredo, active 1097. De rebus gestis Rogerii, Calabriae et Siciliae comitis, et Roberti Guiscardi ducis, fratris ejus--Criticism and interpretation.
Normans--Italy, Southern--History--Sources.
William, of Auvergne, Bishop of Paris, 1180-1249. Gesta Roberti Wiscardi--Criticism and interpretation.
Harvard subject headings:
Amato, di Montecassino, active 11th century. Storia de' normanni--Criticism and interpretation.
Guilelmus Apuliensis, active 12th century. Gesta Roberti Wiscardi--Criticism and interpretation.
Italy, Southern--History--535-1268--Sources.
Malaterra, Goffredo, active 1097. De rebus gestis Rogerii, Calabriae et Siciliae comitis, et Roberti Guiscardi ducis, fratis eius--Criticism and interpretation.
Normans--Italy, Southern--History--Sources.
Princeton subject headings:
Italy, Southern--History--535-1268--Historiography.
Normans--Italy, Southern--History--To 1500.