Chaffey, D., & Smith, P. R. (2017). Digital Marketing Excellence: Planning, Optimizing and Integrating Online Marketing (5th ed.). Routledge An Imprint of Taylor & Francis Group.
Lua i Stíl Chicago (17ú heag.)Chaffey, Dave, agus P. R. Smith. Digital Marketing Excellence: Planning, Optimizing and Integrating Online Marketing. 5th ed. New York: Routledge An Imprint of Taylor & Francis Group, 2017.
Lua MLA (9ú heag.)Chaffey, Dave, agus P. R. Smith. Digital Marketing Excellence: Planning, Optimizing and Integrating Online Marketing. 5th ed. Routledge An Imprint of Taylor & Francis Group, 2017.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.