MLA

Gelbukh, Alexander, Takeo Kanade, and Josef Kittler. Computational Linguistics and Intelligent Text Processing. Springer Berlin Heidelberg, 2009.

APA

Gelbukh, A., Kanade, T., & Kittler, J. (2009). Computational Linguistics and Intelligent Text Processing. Springer Berlin Heidelberg.

Chicago

Gelbukh, Alexander, Takeo Kanade, and Josef Kittler. Computational Linguistics and Intelligent Text Processing. : Springer Berlin Heidelberg, 2009.