To cite a webpage with multiple authors, include the authors’ surnames, and first and middle initials at the beginning of the reference. After the authors’ names, include important details like the year, month, and year of the publication, title, and URL. This format can be followed for web pages that have 20 authors. If the webpage has 21 or more authors, add the names of the first 19 authors and then include an ellipsis … Then, write the final author’s name in the citation.