APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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