Dyfyniad APA

Drucker, P. F. (2006). Classic Drucker: Essential wisdom of Peter Drucker from the pages of Harvard Business Review. Boston: Harvard Business Review Book.

Dyfyniad Arddull Chicago

Drucker, Peter F. Classic Drucker: Essential Wisdom of Peter Drucker From the Pages of Harvard Business Review. Boston: Harvard Business Review Book, 2006.

Dyfyniad MLA

Drucker, Peter F. Classic Drucker: Essential Wisdom of Peter Drucker From the Pages of Harvard Business Review. Boston: Harvard Business Review Book, 2006.

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