The trader's best companion [microform] : containing various arithmetical rules, by which simple addition, subtraction, multiplication, division reduction, practice, interest, loss and gain, book-keeping &c. are applied to the federal currency : with several useful tables : very necessary in schools, and for all those who may have occasion to deal in money matters /
Chaplin, Joseph.
Newburyport [Mass.] : Printed by William Barrett,
1795.
Errata:  p. 36.
Microfiche.
Money
Arithmetic
Business mathematics.