APA (7th ed.) Citation

Barker, A. (2010). Improve your communication skills (2nd ed.). KoganPage.

Chicago Style (17th ed.) Citation

Barker, Alan. Improve Your Communication Skills. 2nd ed. London ; Philadelphia, PA: KoganPage, 2010.

MLA (9th ed.) Citation

Barker, Alan. Improve Your Communication Skills. 2nd ed. KoganPage, 2010.

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