Daboll's schoolmaster's assistant [electronic resource] : Improved and enlarged. Being a plain, practical system of arithmetick. Adapted to the United States / by Nathan Daboll. With the addition of the farmers' and mechanics' best method of book-keeping, designed as a companion to Daboll's arithmetic. By Samuel Green.
Electronic text and image data. Ann Arbor, Mich. : University of Michigan Digital Library, 2005. Includes both TIFF files and keyword searchable text. [Making of America] Mode of access: Internet
Note
"The practical accountant; or Farmer's and mechanicks' best method of book-keeping" (with special t.-p.): 12 p. at end.