SpringerLink (Online service), Presmeg, N., Radford, L., Roth, W., & Kadunz, G. (2018). Signs of Signification: Semiotics in Mathematics Education Research (1st ed. 2018.). Springer International Publishing : Imprint: Springer. https://doi.org/10.1007/978-3-319-70287-2
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Norma Presmeg, Luis Radford, Wolff-Michael Roth, και Gert Kadunz. Signs of Signification: Semiotics in Mathematics Education Research. 1st ed. 2018. Cham: Springer International Publishing : Imprint: Springer, 2018. https://doi.org/10.1007/978-3-319-70287-2.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Signs of Signification: Semiotics in Mathematics Education Research. 1st ed. 2018. Springer International Publishing : Imprint: Springer, 2018. https://doi.org/10.1007/978-3-319-70287-2.
