How to Cite a Tweet in MLA 7 Don't want to cite by hand? Search and cite automatically with EasyBib! 1. Choose Source Type Website Book Journal Newspaper Cite This Structure: Last name, First name (Username). “Tweet Message.” Date posted, Time Posted. Tweet. Example: Timberlake, Justin (jtimberlake). “USA! USA!!.” 16 June 2014, 8:05 PM. Tweet.