Elementary Differential Equations and Boundary Value Problems Sixth Edition and Differential Equations with Mathematica, Second Edition and Student Solutions Manual to Accompany Elementary Differential Equations and Boundary Value Problems Sixth EditionWilliam E. Boyce, Richard C. DiPrima, Kevin R. Coombes, Brian R. Hunt, Ronald L. Lipsman · First published 1998Open the Tome
Towns and cities, teacher's manual (Field social studies program)Ronald R. Boyce · First published 1970Open the Tome
Studies of the central business district and urban freeway developmentEdgar M. Horwood and Ronald R. Boyce · First published 1959Open the Tome