If you poke around on ANSI's website you can find a place to buy your own official electronic PDF copy of the Common Lisp standard. Do not buy! It's a low-resolution scan of a printed document, and looks like garbage.

This is not news to the nerds in the know, but just yesterday poor Quadrescence had to learn the lesson the hard way. Don't let his $30 go to waste - learn from his mistake.