MLA

Krahmer, Emiel, et al. Empirical Methods In Natural Language Generation. Springer Berlin Heidelberg, 2010.

APA

Krahmer, E., Kanade, T., Theune, M., & Kittler, J. (2010). Empirical Methods in Natural Language Generation. Springer Berlin Heidelberg.

Chicago

Krahmer, Emiel, Takeo Kanade, Mariƫt Theune, and Josef Kittler. Empirical Methods In Natural Language Generation. : Springer Berlin Heidelberg, 2010.