Charlesworth, A. (2018). Digital marketing: A practical approach (Third edition.). Routledge, Taylor & Francis Group.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCharlesworth, Alan. Digital Marketing: A Practical Approach. Third edition. Abingdon, Oxon ; New York: Routledge, Taylor & Francis Group, 2018.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCharlesworth, Alan. Digital Marketing: A Practical Approach. Third edition. Routledge, Taylor & Francis Group, 2018.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.