APA (7th ed.) Citation

SpringerLink (Online service), Hoffmann, M. H., Lenhard, J., & Seeger, F. (2005). Activity and Sign: Grounding Mathematics Education. Springer US.

Chicago Style (17th ed.) Citation

SpringerLink (Online service), Michael H.G Hoffmann, Johannes Lenhard, and Falk Seeger. Activity and Sign: Grounding Mathematics Education. Boston, MA: Springer US, 2005.

MLA (8th ed.) Citation

SpringerLink (Online service), et al. Activity and Sign: Grounding Mathematics Education. Springer US, 2005.