APA引文

Drucker, P. F. (1971). The new markets... and other essays. London: Heinemann.

Trích dẫn kiểu Chicago

Drucker, 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.