The Teachers' Assistant, Or, A System of Practical Arithmetic: Wherein the Several Rules of that Useful Science, are Illustrated by a Variety of Examples, a Large Proportion of which are in Federal Money : the Whole Designed to Abridge the Labour of Teachers, and to Facilitate the Instruction of Youth Published and sold by M'Carty & Davis, (successors to the late Benjamin Warner), ... stereotyped by L. Johnson, Philadelphia, 1827 - 198 σελίδες |