The key to the Tutor's guide: or the arithmetician's repository. Containing the solutions of the questions, &c. in the Tutor's guide. ... the fourth edition, carefully revised and corrected. By Charles Vyse, ...
Vyse, Charles,active 1770-1815.
London : printed for G.G.J. and J. Robinson,
1785.
With a final leaf of advertisements.
ESTC