Clavis usuræ: or, a key to interest, both simple and compound: containing practical rules, ... To which is added, rules to be observ'd in estimating the value of annuities, or leases, ... By J. Ward, ...
Ward, John,active 1698-1709.
London : printed for J. Cecill; and sold by H. Chapelle,
1740.
Reproduction of original from the "Department of Special Collections, Kenneth Spencer Research Library, University of Kansas".
ESTC