APA (7th ed.) Citation

Barker, A. (2013). Improve your communication skills (3rd ed.). Kogan Page.

Chicago Style (17th ed.) Citation

Barker, Alan. Improve Your Communication Skills. 3rd ed. London: Kogan Page, 2013.

MLA (9th ed.) Citation

Barker, Alan. Improve Your Communication Skills. 3rd ed. Kogan Page, 2013.

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