APA (7th ed.) Citation

Barker. (2000). How to be better at... managing people. Kogan Page.

Chicago Style (17th ed.) Citation

Barker. How to Be Better at... Managing People. London: Kogan Page, 2000.

MLA (8th ed.) Citation

Barker. How to Be Better at... Managing People. Kogan Page, 2000.

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