Frick, T., & Eyler-Werve, K. (2015). Return on engagement: Content strategy and web design techniques for digital marketing (Second edition.). Focal Press.
Chicago-Zitierstil (17. Ausg.)Frick, Tim, und Kate Eyler-Werve. Return on Engagement: Content Strategy and Web Design Techniques for Digital Marketing. Second edition. Burlington, Mass: Focal Press, 2015.
MLA-Zitierstil (9. Ausg.)Frick, Tim, und Kate Eyler-Werve. Return on Engagement: Content Strategy and Web Design Techniques for Digital Marketing. Second edition. Focal Press, 2015.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.