APA (7th ed.) Citation

Leder, G. C., Pehkonen, E., & Törner, G. (2002). Beliefs: A hidden variable in mathematics education? Kluwer Academic Publishers.

Chicago Style (17th ed.) Citation

Leder, Gilah C., Erkki Pehkonen, and Günter Törner. Beliefs: A Hidden Variable in Mathematics Education? Dordrecht ; Boston: Kluwer Academic Publishers, 2002.

MLA (8th ed.) Citation

Leder, Gilah C., et al. Beliefs: A Hidden Variable in Mathematics Education? Kluwer Academic Publishers, 2002.