The National Arithmetic on the Inductive System: Combining the Analytic and Synthetic Methods; Forming a Complete Mercantile Arithmetic R.S. Davis, 1858 - 444 σελίδες |
The National Arithmetic on the Inductive System: Combining the Analytic and Synthetic Methods; Forming a Complete Mercantile ArithmeticR.S. Davis, 1858 - 444 σελίδες |