APA (7th ed.) Citation

Barker, A. (2010). Improve your communication skills, revised second edition (Rev 2nd ed.). KoganPage.

Chicago Style (17th ed.) Citation

Barker, Alan. Improve Your Communication Skills, Revised Second Edition. Rev 2nd ed. London ; Philadelphia, Pennslyvania: KoganPage, 2010.

MLA (9th ed.) Citation

Barker, Alan. Improve Your Communication Skills, Revised Second Edition. Rev 2nd ed. KoganPage, 2010.