APA (7th ed.) Citation

Schunk, C. (2011). Sonneberg gestern: Alt-Sonneberger Kalender 2012.

Chicago Style (17th ed.) Citation

Schunk, Claus. Sonneberg Gestern: Alt-Sonneberger Kalender 2012. 2011.

MLA (8th ed.) Citation

Schunk, Claus. Sonneberg Gestern: Alt-Sonneberger Kalender 2012. 2011.

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