MLA

Conati, Cristina, et al. User Modeling 2007. Springer Berlin Heidelberg, 2007.

APA

Conati, C., McCoy, K., Paliouras, G., & Siekmann, J. (2007). User Modeling 2007. Springer Berlin Heidelberg.

Chicago

Conati, Cristina, Kathleen McCoy, Georgios Paliouras, and Jörg Siekmann. User Modeling 2007. : Springer Berlin Heidelberg, 2007.