Gaya APA
Kieran, C. et al (2016).
Early algebra :research into its nature, its learning, its teaching .
Cham, Switzerland:
Springer Nature.
Gaya MLA
Kieran, Carolyn. et al.
"Early algebra :research into its nature, its learning, its teaching".
Cham, Switzerland:
Springer Nature,
2016.
Ebook.