Presmeg, N., Radford, L., Roth, W., & Kadunz, G. (2016). Semiotics in Mathematics Education. Springer International Publishing : Imprint: Springer. https://doi.org/10.1007/978-3-319-31370-2

Presmeg, Norma, Luis Radford, Wolff-Michael Roth, and Gert Kadunz. Semiotics in Mathematics Education. Cham: Springer International Publishing : Imprint: Springer, 2016. https://doi.org/10.1007/978-3-319-31370-2.

Presmeg, Norma, et al. Semiotics in Mathematics Education. Springer International Publishing : Imprint: Springer, 2016. https://doi.org/10.1007/978-3-319-31370-2.