MLA

Vetulani, Zygmunt, Takeo Kanade, and Josef Kittler. Human Language Technology. Challenges for Computer Science and Linguistics. Springer Berlin Heidelberg, 2011.

APA

Vetulani, Z., Kanade, T., & Kittler, J. (2011). Human Language Technology. Challenges for Computer Science and Linguistics. Springer Berlin Heidelberg.

Chicago

Vetulani, Zygmunt, Takeo Kanade, and Josef Kittler. Human Language Technology. Challenges for Computer Science and Linguistics. : Springer Berlin Heidelberg, 2011.