An exact guide to book-keeping by way of debtor and creditor : done after the Italian method : containing I. decimal arithmetick ... II. thirty seven cases in domestick trade and twenty cases in foreign trades ... III. book-keeping, in a very easy and familiar method ... IV. by the help of a computation-book, shewing the true and exact method of entring, posting, and closing accompts ...V. the whole leidger ballanc'd ... /