Trattato de'computi e Delle Scritture...

Ancient Double-Entry Bookkeeping. Lucas Pacioli's Treatise (A. D. 1494--the Earliest Known Writer on Bookkeeping) Reproduced and Translated with Reproductions, Notes and Abstracts from Manzoni, Pietra, Mainardi, Ympyn, Stevin and Dafforne

De Divina Proportione

Divina Proportione