A Concise System of Commercial Arithmetic, Adapted to Modern Practice James Morrison

With an appendix, containing a series of queries on bills and merchants accounts, and a course of letters on business; also duodecimals, timber-measuring, artificers computations, and the square and cube root, with their application. Воспроизведено в оригинальной авторской орфографии издания 1838 года. Это и многое другое вы найдете в книге A Concise System of Commercial Arithmetic, Adapted to Modern Practice (James Morrison)