Aurelii Cassiodori ... De quatuor mathematicis disciplinis compendium. Adjectus est vetustus author, anonymos tamen, de architectura compendiosissime tractans, que Vitruvius & ceteri locupletius ac diffusius tradidere , in que & mathemata exerceas, & architectonices usum parvo temporis dispendio discas
Flavius Magnus Aurelius Senator Cassiodorus
Bok Latin 1540