一本中世紀的教科書

博士. Erik Kwakkel and Dr. Beth Harris look at a medieval textbook: Boethius, De institutione arithmetica, C. 1100 (National Library of the Netherlands, The Hague, MS 78 乙 59). With special thanks to Ed van der Vlist, Curator of Medieval Manuscripts, Koninklijke Bibliotheek, National Library of the Netherlands. 由 Beth Harris 和 Steven Zucker 創建.