APA ציטוט

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

Trích dẫn kiểu Chicago

Drucker, Peter F. The New Markets, and Other Essays. London: Heinemann, 1971.

ציטוט MLA

Drucker, Peter F. The New Markets, and Other Essays. London: Heinemann, 1971.