中世纪教科书

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. 由贝丝·哈里斯（Beth Harris）和史蒂文·扎克（Steven Zucker）创建.