Asgodom, S. (2004). 12 Schlüssel zur Gelassenheit: So stoppen Sie den Stress. Kösel.
Chicago Style (17th ed.) CitationAsgodom, Sabine. 12 Schlüssel Zur Gelassenheit: So Stoppen Sie Den Stress. München: Kösel, 2004.
MLA (9th ed.) CitationAsgodom, Sabine. 12 Schlüssel Zur Gelassenheit: So Stoppen Sie Den Stress. Kösel, 2004.
Warning: These citations may not always be 100% accurate.