Daboll's Schoolmaster's Assistant: Improved and Enlarged. Being a Plain, Practical System of Arithmetic. Adapted to the United States G. Tracy, 1836 - 240 σελίδες |
Daboll's Schoolmaster's Assistant: Improved and Enlarged. Being a Plain, Practical System of Arithmetic. Adapted to the United StatesG. Tracy, 1836 - 240 σελίδες |