Gaya APA
c, P., N., Luis, R. (2016).
Semiotics in mathematics education - ICME-13 topical surveys .
Cham, Switzerland:
SpringerOpen.
Gaya MLA
Presmeg, Norma, C., Radford, Luis.
"Semiotics in mathematics education - ICME-13 topical surveys".
Cham, Switzerland:
SpringerOpen,
2016.
Electronic Resource.