Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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