Pospischil, G. (2009). Wunderbare Herausforderung. NTI.
Chicago Style (17th ed.) CitationPospischil, Gerd. "Wunderbare Herausforderung." NTI 2009.
MLA (8th ed.) CitationPospischil, Gerd. "Wunderbare Herausforderung." NTI, 2009.
Warning: These citations may not always be 100% accurate.