APA-viite (7. p.)

Smith, J. (2020). Digital marketing for businesses: In easy steps. Easy steps limited.

Chicago-viite (17. p.)

Smith, Jon. Digital Marketing for Businesses: In Easy Steps. Warwickshire, United Kingdom: Easy steps limited, 2020.

MLA-viite (9. p.)

Smith, Jon. Digital Marketing for Businesses: In Easy Steps. Easy steps limited, 2020.