SpringerLink (Online service), Liljedahl, P., & Santos-Trigo, M. (2019). Mathematical Problem Solving: Current Themes, Trends, and Research (1st ed. 2019.). Springer International Publishing : Imprint: Springer. https://doi.org/10.1007/978-3-030-10472-6
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Peter Liljedahl, και Manuel Santos-Trigo. Mathematical Problem Solving: Current Themes, Trends, and Research. 1st ed. 2019. Cham: Springer International Publishing : Imprint: Springer, 2019. https://doi.org/10.1007/978-3-030-10472-6.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Mathematical Problem Solving: Current Themes, Trends, and Research. 1st ed. 2019. Springer International Publishing : Imprint: Springer, 2019. https://doi.org/10.1007/978-3-030-10472-6.
