APA (7th ed.) Citation

Drucker, P. (2009). The Daily Drucker (1st edition.). HarperCollins Publishers.

Chicago Style (17th ed.) Citation

Drucker, Péter. The Daily Drucker. 1st edition. HarperCollins Publishers, 2009.

MLA (9th ed.) Citation

Drucker, Péter. The Daily Drucker. 1st edition. HarperCollins Publishers, 2009.

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