The Common School Arithmetic: Combining Analysis and Synthesis : Adapted to the Best Mode of Instruction in the Elements of Written Arithmetic Thompson, Bigelow & Brown, 1870 - 324 σελίδες |
The Common School Arithmetic: Combining Analysis and Synthesis : Adapted to the Best Mode of Instruction in the Elements of Written ArithmeticThompson, Bigelow & Brown, 1870 - 324 σελίδες |