Charlesworth, A. (2018). Digital marketing: A practical approach (Third edition.). Routledge, Taylor & Francis Group.
Lua i Stíl Chicago (17ú heag.)Charlesworth, Alan. Digital Marketing: A Practical Approach. Third edition. Abingdon, Oxon ; New York: Routledge, Taylor & Francis Group, 2018.
Lua MLA (8ú heag.)Charlesworth, Alan. Digital Marketing: A Practical Approach. Third edition. Routledge, Taylor & Francis Group, 2018.
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