Drucker, P. F. (2017). The Theory of the Business. Harvard Business Review Press.
Chicagoスタイル(17版)引用形式Drucker, Peter F. The Theory of the Business. Boston, Massachesutts: Harvard Business Review Press, 2017.
MLA(9版)引用形式Drucker, Peter F. The Theory of the Business. Harvard Business Review Press, 2017.
警告: この引用は必ずしも正確ではありません.