APA (7th ed.) Citation

SpringerLink (Online service), Hoffmann, M. H., Seeger, F., & Lenhard, J. (2005). Activity and sign: Grounding mathematics education. Springer.

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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