APA (7th ed.) Citation

Eppert, F., Gerighausen, J., & Martin, H. German as it is spoken: = Deutsch wie man es spricht. Groos.

Chicago Style (17th ed.) Citation

Eppert, Franz, Josef Gerighausen, and Hanno Martin. German as It Is Spoken: = Deutsch Wie Man Es Spricht. Heidelberg: Groos.

MLA (9th ed.) Citation

Eppert, Franz, et al. German as It Is Spoken: = Deutsch Wie Man Es Spricht. Groos.