Dyfyniad APA

Drucker, P. F. (2017). The Theory of the Business. Harvard Business Review Press.

Dyfyniad Arddull Chicago

Drucker, Peter F. The Theory of the Business. Boston, Massachesutts: Harvard Business Review Press, 2017.

Dyfyniad MLA

Drucker, Peter F. The Theory of the Business. Harvard Business Review Press, 2017.

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