MLA

Kop, Christian, et al. Natural Language Processing and Information Systems. Springer Berlin / Heidelberg, 2006.

APA

Kop, C., Fliedl, G., Kanade, T., Mayr, H. C, & Métais, E. (2006). Natural Language Processing and Information Systems. Springer Berlin / Heidelberg.

Chicago

Kop, Christian, Günther Fliedl, Takeo Kanade, Heinrich C Mayr, and Elisabeth Métais. Natural Language Processing and Information Systems. : Springer Berlin / Heidelberg, 2006.