Dyfyniad APA

Drucker, P. F. (2006). Classic Druck: Essential wisdom of Perter Drucker from the pages of Harvard Business Review. Harvard Business School Publishing Corporation.

Dyfyniad Arddull Chicago

Drucker, Peter F. Classic Druck: Essential Wisdom of Perter Drucker from the Pages of Harvard Business Review. Boston: Harvard Business School Publishing Corporation, 2006.

Dyfyniad MLA

Drucker, Peter F. Classic Druck: Essential Wisdom of Perter Drucker from the Pages of Harvard Business Review. Harvard Business School Publishing Corporation, 2006.

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