Book-keeping new modelled: or, A treatise of merchants accounts, [electronic resource] : According to the true Italian method of debitor and creditor; wherein that excellent and curious method is clearly laid down, in a plain and convincing manner; whole being altogether new and concise, and illustrated with three set of books. To which are added a specimen of a factor-book, a ware-house book, and an invoice-book; with directions how to same a book of charges of merchandize, and a book of personal and household expences. By William Hamilton M.M.P. and teacher of book-keeping.