MLA

Foret, et al. Formal Grammar. Springer Berlin Heidelberg, 2018.

APA

Foret, F., Reinhard Muskens, R. Muskens, Sylvain Pogodalla, S. Pogodalla, Muskens, R., & Pogodalla, S. (2018). Formal Grammar. Springer Berlin Heidelberg.

Chicago

Foret, Reinhard Muskens, Sylvain Pogodalla, Reinhard Muskens, and Sylvain Pogodalla. Formal Grammar. : Springer Berlin Heidelberg, 2018.