APA (7th ed.) Citation

Duesmann, C., & Gieseke, W. (2009). Windows 7 für Fortgeschrittene. Data Becker.

Chicago Style (17th ed.) Citation

Duesmann, Christoph, and Wolfram Gieseke. Windows 7 Für Fortgeschrittene. Düsseldorf: Data Becker, 2009.

MLA (9th ed.) Citation

Duesmann, Christoph, and Wolfram Gieseke. Windows 7 Für Fortgeschrittene. Data Becker, 2009.

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