The new universal ready reckoner; or, Every trader's infallible guide [microform] : containing new and complete tables, most carefully cast up, and exhibiting at one point of view the value or amount of any quantity of goods in trade or merchandise, from one farthing to twenty shillings, not only by the pound, ounce, yard, ell, &c. but also by the long or short hundred, half hundred, &c. : the whole so calculated to assist in buying and selling all kinds of commodities, both wholesale and retail ... : to which are added, a valuable catalogue of weights, measures, &c. and tables for casting-up wages, by the day, week, month, and year / by John Bettesworth.