APA Edition Citation

Drucker. (2009). Innovation and entrepreneurship: Practice and principles. Elsevier.

Chicago Edition Citation

Drucker. Innovation and Entrepreneurship: Practice and Principles. UP: Elsevier, 2009.

MLA Edition Citation

Drucker. Innovation and Entrepreneurship: Practice and Principles. Elsevier, 2009.

Warning: These citations may not always be 100% accurate.