Drucker, P. F. 1. (1993). Innovation and entrepreneurship: Practice and principles. New York: HarperBusiness.
Chicago ZitierstilDrucker, Peter F. 1909-2005. Innovation and Entrepreneurship: Practice and Principles. New York: HarperBusiness, 1993.
MLA ZitierstilDrucker, Peter F. 1909-2005. Innovation and Entrepreneurship: Practice and Principles. New York: HarperBusiness, 1993.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.