The citation must include the author, title, name of publisher, place of publication, and date. There are several forms for citations depending on the type of publication or project undertaken. The United Press has a format and publishes a style manual to help journalists and others comply with requirements. Many social scientists comply with the format of the Chicago Manual of Style . Librarians, scholars of literature and other social scientists follow the MLA style or the APA style.
Most publishers tell contributors which style to follow.
Whatever style is preferred, the author must be consistent.