Drucker, P. F. (2015). Innovation and entrepreneurship: Practice and principles (2nd ed.). Routledge.
Citazione stile Chigago Style (17a edizione)Drucker, Peter F. Innovation and Entrepreneurship: Practice and Principles. 2nd ed. New York: Routledge, 2015.
Citatione MLA (9a ed.)Drucker, Peter F. Innovation and Entrepreneurship: Practice and Principles. 2nd ed. Routledge, 2015.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.