Töttel, U., & Büchler, H. (2011). Research Conferences on Organised Crime at the Bundeskriminalamt in Germany 2008 - 2010. Luchterhand.
Čikaški stil citiranja (17. izdanje)Töttel, Ursula, i Heinz Büchler. Research Conferences on Organised Crime at the Bundeskriminalamt in Germany 2008 - 2010. Köln: Luchterhand, 2011.
MLA način citiranja (8. izdanje)Töttel, Ursula, i Heinz Büchler. Research Conferences on Organised Crime at the Bundeskriminalamt in Germany 2008 - 2010. Luchterhand, 2011.
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