APA (7th ed.) Citation

Ritterbusch, R. (2012). Seid neugierig !

Chicago Style (17th ed.) Citation

Ritterbusch, Richard. Seid Neugierig ! 2012.

MLA (9th ed.) Citation

Ritterbusch, Richard. Seid Neugierig ! 2012.

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