VERSION attribute in HTML

What should the VERSION attribute look like? I have seen two so far:
"-//IETF//DTD HTML 3.0//EN" and "-//W3O//DTD W3 HTML 3.0//EN//"
Which should I use?

-- 
Benjamin C. W. Sittler
   "I have great confidence in fools -- self confidence my friends call it."
                            --Edgar Allen Poe
mailto:bsittler@nmt.edu                               http://nmt.edu/~bsittler/

Received on Thursday, 20 July 1995 11:59:21 UTC