Guin, D., Ruthven, K., & Trouche, L. (2005). The didactical challenge of simbolic calculators: Turning a computational device into a mathematical instrument. Springer.
Citazione stile Chigago Style (17a edizione)Guin, Dominique, Kenneth Ruthven, e Luc Trouche. The Didactical Challenge of Simbolic Calculators: Turning a Computational Device into a Mathematical Instrument. Nueva York: Springer, 2005.
Citatione MLA (9a ed.)Guin, Dominique, et al. The Didactical Challenge of Simbolic Calculators: Turning a Computational Device into a Mathematical Instrument. Springer, 2005.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.