Ancient double-entry bookkeeping : Lucas Pacioli's treatise (A.D. 1494 - the earliest known writer on bookkeeping)
Geijsbeek, John B. (John Bart), 1872-; Manzoni, Domenico, 16th cent; Mainardi, Matteo, 17th cent; Christoffels, Jan Ympyn, 16th cent; Stevin, Simon, 1548-1620; Dafforne, Richard; Pacioli, Luca, ca. 1445-1517; Pietra, Angelo, 16th cent