The only new elements are the URL and the access date. Protocol describes the method of access. It is essentially a pre-Web browser system. This protocol allows the user to conduct keyword searches of prepared databases of information covering documents, sound files, programs, and other materials. The UseNet service allows wide Net access to exchanges on specified topics.
Documents are essentially e-mail letters.
Use angle brackets to enclose the URL and avoid line breaks. It is a wise precaution to save an archived copy of any document you cite. The Susanne Corpus . Oxford Text Archive. 11 Aug. 1997.