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
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPresmeg, Norma, Luis Radford, Wolff-Michael Roth, और Gert Kadunz. Semiotics in Mathematics Education. Cham: Springer International Publishing : Imprint: Springer, 2016. https://doi.org/10.1007/978-3-319-31370-2.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPresmeg, Norma, et al. Semiotics in Mathematics Education. Springer International Publishing : Imprint: Springer, 2016. https://doi.org/10.1007/978-3-319-31370-2.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.