Thomson, J., & Dix, E. R. M. (. R. M. (1863). A treatise on arithmetic, in theory and practice ... with ... appendix, containing an introduction to mensuration (45th ed.). Belfast.MLA Citation
Thomson, James., and E. R. McC. (Ernest Reginald McClintock) Dix. A Treatise On Arithmetic, in Theory and Practice ... With ... Appendix, Containing an Introduction to Mensuration. 45th ed. Belfast, 1863.