1. Duff's North American accountant: embracing single and double entry book-keeping, practically adapted to the inland and maritime commerce of the United States ... Title: Duff's North American accountant: embracing single and double entry book-keeping, practically adapted to the inland and maritime commerce of the United States ... Date: 1858. Author: Duff, P. (Peter), 1802-1869. Collecting Area: Rare Books