APA (7th ed.) Citation

Beck, G., & Graf, W. (2014). Die Freiwilligen Feuerwehren (FFW).

Chicago Style (17th ed.) Citation

Beck, Gerhard, and Wolfgang Graf. Die Freiwilligen Feuerwehren (FFW). 2014.

MLA (9th ed.) Citation

Beck, Gerhard, and Wolfgang Graf. Die Freiwilligen Feuerwehren (FFW). 2014.

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