APA (7th ed.) Citation

Appleby, M., Friedrich, V., Haupt, D., Hoffmann, R., Reischauer, D., & Rischke, D. M. (2010). USA: Intermediate level (Druck A 1.). Westermann.

Chicago Style (17th ed.) Citation

Appleby, Matthew, Volker Friedrich, Dieter Haupt, Reinhard Hoffmann, Dirk Reischauer, and Dimo M. Rischke. USA: Intermediate Level. Druck A 1. Braunschweig: Westermann, 2010.

MLA (9th ed.) Citation

Appleby, Matthew, et al. USA: Intermediate Level. Druck A 1. Westermann, 2010.