APA
Ryan D., . (2014). The best digital marketing campaigns in the world ii : mastering the art of customer engagement. London: Kogan Page.
Chicago
Ryan Damian, . 2014. The best digital marketing campaigns in the world ii : mastering the art of customer engagement. London: Kogan Page.
Harvard
Ryan D., . (2014). The best digital marketing campaigns in the world ii : mastering the art of customer engagement. London: Kogan Page.
MLA
Ryan Damian, . The best digital marketing campaigns in the world ii : mastering the art of customer engagement. London: Kogan Page. 2014.