MLA

Diekert, Volker, et al. Developments In Language Theory. Springer Berlin Heidelberg, 2009.

APA

Diekert, V., Kanade, T., Nowotka, D., & Kittler, J. (2009). Developments in Language Theory. Springer Berlin Heidelberg.

Chicago

Diekert, Volker, Takeo Kanade, Dirk Nowotka, and Josef Kittler. Developments In Language Theory. : Springer Berlin Heidelberg, 2009.