The schoolmaster's assistant; being a compendium of arithmetic, both practical and theoretical. In five parts. ... To which is prefixed, an essay on the education of youth; ... A new edition. By Thomas Dilworth, ...
Dilworth, Thomas,-1780.
London [i.e. York?] : printed for A. Millar, W. Law, and R. Cater; and Wilson, Spence, and Mawman, York,
1791.
The London part of the imprint is false; probably printed at York.
ESTC