Citazione Stile APA (7a Edizione)

Arnon, I., & Cottrill, J. (2014). APOS Theory: A framework for research and curriculum development in mathematics education. Springer.

Citazione stile Chigago Style (17a edizione)

Arnon, Ilana, e Jim Cottrill. APOS Theory: A Framework for Research and Curriculum Development in Mathematics Education. New York, Estados Unidos: Springer, 2014.

Citatione MLA (9a ed.)

Arnon, Ilana, e Jim Cottrill. APOS Theory: A Framework for Research and Curriculum Development in Mathematics Education. Springer, 2014.