Drucker, P. F. (1968). The practice of management. London: Pan Books.
Trích dẫn kiểu ChicagoDrucker, Peter F. The Practice of Management. London: Pan Books, 1968.
MLA引文Drucker, Peter F. The Practice of Management. London: Pan Books, 1968.
警告：这些引文格式不一定是100％准确.