An Elementary Arithmetic: Designed for Academies and Schools : Also, Serving as an Introduction to the Higher Arithmetic Bennett, Backus & Hawley, 1845 - 258 σελίδες |
An Elementary Arithmetic: Designed for Academies and Schools : Also, Serving as an Introduction to the Higher ArithmeticBennett, Backus & Hawley, 1845 - 258 σελίδες |