APA Style
Presmeg, N, C., Radford, L. (2016).
Semiotics in mathematics education - ICME-13 topical surveys .
Cham, Switzerland:
SpringerOpen.
MLA Style
Presmeg, Norma, C., Radford, Luis.
"Semiotics in mathematics education - ICME-13 topical surveys".
Cham, Switzerland:
SpringerOpen,
2016.
Text.