Drucker, P. F. (1974). Management: Tasks responsibilities practices. Harper & row.
Chicagoスタイル(17版)引用形式Drucker, Peter F. Management: Tasks Responsibilities Practices. New York: Harper & row, 1974.
MLA(9版)引用形式Drucker, Peter F. Management: Tasks Responsibilities Practices. Harper & row, 1974.
警告: この引用は必ずしも正確ではありません.