Παραπομπή APA

Chaffey, D., & Smith, P. R. (2018). Digital marketing excellence: Planning, optimizing and integrating online marketing (5.). Routledge.

Παραπομπή Chicago Style

Chaffey, Dave, και P. R. Smith. Digital Marketing Excellence: Planning, Optimizing and Integrating Online Marketing. 5. London: Routledge, 2018.

Παραπομπή MLA

Chaffey, Dave, και P. R. Smith. Digital Marketing Excellence: Planning, Optimizing and Integrating Online Marketing. 5. Routledge, 2018.