APA (7th ed.) Citation

Hornig, M. (2013). 30 Minuten Flow. GABAL-Verlag.

Chicago Style (17th ed.) Citation

Hornig, Markus. 30 Minuten Flow. Offenbach: GABAL-Verlag, 2013.

MLA (9th ed.) Citation

Hornig, Markus. 30 Minuten Flow. GABAL-Verlag, 2013.

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