Eichenbaum, D. A. (2007). The business rules: The seven irrefutable laws that determine all business success. Canada: Entrepreneur Press.
Styl ChicagoEichenbaum, David A. The Business Rules: The Seven Irrefutable Laws That Determine All Business Success. Canada: Entrepreneur Press, 2007.
Citace podle MLAEichenbaum, David A. The Business Rules: The Seven Irrefutable Laws That Determine All Business Success. Canada: Entrepreneur Press, 2007.
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