Drucker, P. F. (1971). The new markets... and other essays. London: Heinemann.
Trích dẫn kiểu ChicagoDrucker, Peter Ferdinand. The New Markets... and Other Essays. London: Heinemann, 1971.
MLA引文Drucker, Peter Ferdinand. The New Markets... and Other Essays. London: Heinemann, 1971.
警告:这些引文格式不一定是100%准确.