Charlesworth, A. (2018). Digital marketing: A practical approach (Third edition.). Routledge, Taylor & Francis Group.
Chicago-referens (17:e uppl.)Charlesworth, Alan. Digital Marketing: A Practical Approach. Third edition. Abingdon, Oxon ; New York: Routledge, Taylor & Francis Group, 2018.
MLA-referens (8:e uppl.)Charlesworth, Alan. Digital Marketing: A Practical Approach. Third edition. Routledge, Taylor & Francis Group, 2018.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.