APA (7th ed.) Citation

(2005). Leitfaden (Stand: 03/2005.).

Chicago Style (17th ed.) Citation

Leitfaden. Stand: 03/2005. [Bonn], 2005.

MLA (9th ed.) Citation

Leitfaden. Stand: 03/2005. 2005.

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