Ryan, D. (2017). Understanding digital marketing: Marketing strategies for engaging the digital generation (4th.). Kogan Page.
芝加哥风格引文Ryan, Damian. Understanding Digital Marketing: Marketing Strategies for Engaging the Digital Generation. 4th. Kogan Page, 2017.
MLA引文Ryan, Damian. Understanding Digital Marketing: Marketing Strategies for Engaging the Digital Generation. 4th. Kogan Page, 2017.
警告：这些引文格式不一定是100％准确.