Introduction to the National Arithmetic, on the Inductive System: Combining the Analytic and Synthetic Methods ... Designed for Common Schools and Academies R.S. Davis, 1867 - 330 σελίδες |
Introduction to the National Arithmetic, on the Inductive System: Combining the Analytic and Synthetic Methods ... Designed for Common Schools and AcademiesR.S. Davis, 1867 - 330 σελίδες |