APOS Theory

MLA

Arnon, Ilana, et al. Apos Theory. Springer New York, 2014.

APA

Arnon, I., Cottrill, J., Dubinsky, E., Oktaç, A., Roa Fuentes, S., Trigueros, M., & Weller, K. (2014). APOS Theory. Springer New York.

Chicago

Arnon, Ilana, Jim Cottrill, Ed Dubinsky, Asuman Oktaç, Solange Roa Fuentes, Maria Trigueros, and Kirk Weller. APOS Theory. : Springer New York, 2014.