(2003). Top ten viruses and hoaxes reported to Sophos in August 2003. Manila Bulletin.
Chicago-referens (17:e uppl.)"Top Ten Viruses and Hoaxes Reported to Sophos in August 2003." Manila Bulletin 2003.
MLA-referens (9:e uppl.)"Top Ten Viruses and Hoaxes Reported to Sophos in August 2003." Manila Bulletin, 2003.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.