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 - Geijsbeek, John B., 1872- (Scholars Book Co., 1974)