APA (7th ed.) Citation

Drucker, P. F. . [. The effective executive: The definitive guide to getting the right things done.

Chicago Style (17th ed.) Citation

Drucker, Peter F [. The Effective Executive: The Definitive Guide to Getting the Right Things Done.

MLA (9th ed.) Citation

Drucker, Peter F [. The Effective Executive: The Definitive Guide to Getting the Right Things Done.

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