Drucker, P. F. (2003). The new realities. Transaction.
Chicagoスタイル(17版)引用形式Drucker, Peter Ferdinand. The New Realities. New Brunswick: Transaction, 2003.
MLA(9版)引用形式Drucker, Peter Ferdinand. The New Realities. Transaction, 2003.
警告: この引用は必ずしも正確ではありません.