Observations on the effects which carriage wheels with rims of different shapes have on the roads respecfully submitted to the approbation of the Board of Agriculture and to the consideration of the Legislature - Cumming, Alexander ([s.n.], 1799)
Goldsmiths'-Kress no. 17721. - Includes bibliographical references. - OCLC, 20802790. - Reproduction of original from Goldsmiths' Library, University of London