Cita APA (7th ed.)

Engel, H. (2004). How to delegate: A guide to getting things done.

Cita Chicago (17th ed.)

Engel, Herbert. How to Delegate: A Guide to Getting Things Done. Mumbai, 2004.

Cita MLA (9th ed.)

Engel, Herbert. How to Delegate: A Guide to Getting Things Done. 2004.