Neyer, H. J. (1997). "Zurück zur Natur".
Chicago Style (17th ed.) CitationNeyer, Hans Joachim. "Zurück Zur Natur". 1997.
MLA (9th ed.) CitationNeyer, Hans Joachim. "Zurück Zur Natur". 1997.
Warning: These citations may not always be 100% accurate.