Congregation of Christian Brothers. (1869). A commercial arithmetic: In which the rules are deduced from scientific principles, and the exercises are adapted to modern mercantile business. In two parts. Part I (10th ed.). Powell.

Congregation of Christian Brothers. A Commercial Arithmetic: In Which the Rules Are Deduced from Scientific Principles, and the Exercises Are Adapted to Modern Mercantile Business. In Two Parts. Part I. 10th ed. Powell, 1869.