Ryan, D. (2015). Understanding social media: How to create a plan for your business that works. Kogan page Limited.
シカゴスタイル引用形Ryan, Damian. Understanding Social Media: How to Create a Plan for Your Business That Works. London: Kogan page Limited, 2015.
MLA引用形式Ryan, Damian. Understanding Social Media: How to Create a Plan for Your Business That Works. Kogan page Limited, 2015.
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