Drucker, P. F. (2015). Innovation and entrepreneurship: Practice and principles (2nd ed.). Routledge.
Chicagoスタイル(17版)引用形式Drucker, Peter F. Innovation and Entrepreneurship: Practice and Principles. 2nd ed. New York: Routledge, 2015.
MLA(9版)引用形式Drucker, Peter F. Innovation and Entrepreneurship: Practice and Principles. 2nd ed. Routledge, 2015.
警告: この引用は必ずしも正確ではありません.