Fisher,Graham. (2019). Social media marketing mastery (NA.). Independently published.
Chicago-viite (17. p.)Fisher,Graham. Social Media Marketing Mastery. NA. USA: Independently published, 2019.
MLA-viite (9. p.)Fisher,Graham. Social Media Marketing Mastery. NA. Independently published, 2019.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.