The Common School Arithmetic: Combining Analysis and Synthesis : Adapted to the Best Mode of Instruction in the Elements of Written Arithmetic Thompson, Brown, 1880 - 359 σελίδες |
The Common School Arithmetic: Combining Analysis and Synthesis : Adapted to the Best Mode of Instruction in the Elements of Written ArithmeticThompson, Brown, 1880 - 359 σελίδες |