The schoolmasters assistant being a compendium of arithmetic, both practical and theoretical. In five parts. ... To which is prefixt, an essay on the education of youth; ... A new edition. Corrected. By Thomas Dilworth - Dilworth, Thomas d. 1780 (printed for W. Osborne and T. Griffin, and Mozley and Co. Gainsbrough, 1793)
English Short Title Catalog, T166146
Reproduction of original from British Library
The imprint is false; probably printed in Gainsborough