APA (7th ed.) Citation

Sprenger, R. K. (2012). 30 Minuten Motivation. Gabal Verlag GmbH.

Chicago Style (17th ed.) Citation

Sprenger, Reinhard K. 30 Minuten Motivation. Offenbach: Gabal Verlag GmbH, 2012.

MLA (9th ed.) Citation

Sprenger, Reinhard K. 30 Minuten Motivation. Gabal Verlag GmbH, 2012.

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