Comer, George Nixon, 1816-1877. A simple method of keeping books ... (Cont. ) 4x Same. llth edition. Tappan & Whittemore. 1855. 104 pp. 220M. *Bentley 56.05.1855
xx» Same. 15th thousand. Whittemore, Niles and Hall. 1856. 103,C1Jp. Sepentlien 56.05.1856