APA (7th ed.) Citation

Norman, S., & Williams, M. (1994). Teste Dein Business English! (8. aufl.). Langenscheidt.

Chicago Style (17th ed.) Citation

Norman, Susan, and Martin Williams. Teste Dein Business English! 8. aufl. Berlin: Langenscheidt, 1994.

MLA (9th ed.) Citation

Norman, Susan, and Martin Williams. Teste Dein Business English! 8. aufl. Langenscheidt, 1994.

Warning: These citations may not always be 100% accurate.