Jefferson, S. (2015). Valuable content marketing: How to make quality content your key to success = How to make quality content your key to success (2nd edition.). Kogan Page.
Chicago-Zitierstil (17. Ausg.)Jefferson, Sonja. Valuable Content Marketing: How to Make Quality Content Your Key to Success = How to Make Quality Content Your Key to Success. 2nd edition. London, UK ; Philadelphia, PA: Kogan Page, 2015.
MLA-Zitierstil (9. Ausg.)Jefferson, Sonja. Valuable Content Marketing: How to Make Quality Content Your Key to Success = How to Make Quality Content Your Key to Success. 2nd edition. Kogan Page, 2015.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.