MLA

Langdon, Patrick, et al. Designing Inclusive Systems. Springer-Verlag London, 2012.

APA

Langdon, P., Clarkson, J., Heylighen, A., Lazar, J., & Robinson, P. (2012). Designing Inclusive Systems. Springer-Verlag London.

Chicago

Langdon, Patrick, John Clarkson, Ann Heylighen, Jonathan Lazar, and Peter Robinson. Designing Inclusive Systems. : Springer-Verlag London, 2012.