एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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