Simon, W. (2012). 30 Minuten Ziele realisieren. GABAL-Verlag.
Chicago Style (17th ed.) CitationSimon, Walter. 30 Minuten Ziele Realisieren. Offenbach: GABAL-Verlag, 2012.
MLA (9th ed.) CitationSimon, Walter. 30 Minuten Ziele Realisieren. GABAL-Verlag, 2012.
Warning: These citations may not always be 100% accurate.