APA (7th ed.) Citation

Küchemann, D., Hodgen, J., & Brown, M. (2014). The use of alternative double number lines as models of ratio tasks and as models for ratio relations and scaling.

Chicago Style (17th ed.) Citation

Küchemann, Dietmar, Jeremy Hodgen, and Margaret Brown. The Use of Alternative Double Number Lines as Models of Ratio Tasks and as Models for Ratio Relations and Scaling. 2014.

MLA (9th ed.) Citation

Küchemann, Dietmar, et al. The Use of Alternative Double Number Lines as Models of Ratio Tasks and as Models for Ratio Relations and Scaling. 2014.