APA (7th ed.) Citation

Markey, T. L., Roberge, P. T., & Kyes, R. L. (2012). Germanic and Its Dialects: A Grammar of Proto-German.

Chicago Style (17th ed.) Citation

Markey, Thomas L., Paul T. Roberge, and Robert L. Kyes. Germanic and Its Dialects: A Grammar of Proto-German. 2012.

MLA (9th ed.) Citation

Markey, Thomas L., et al. Germanic and Its Dialects: A Grammar of Proto-German. 2012.