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. (John Bart), 1872-; Pacioli, Luca, d. ca. 1445-1517; Manzoni, Domenico; Pietra, Angelo, 16th century; Mainardi, Matteo; Christoffels, Jan Ympyn, 16th cent; Stevin, Simon, 1548-1620; Dafforne, Richard