Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.