From: John Watton
Subject: Re: quicksort in lisp
Date: Tue, 15 Apr 1997 00:00:00 +0000
Message-ID: <ug1wrj1cq.fsf@atc.alcoa.com>

Try p.164-165 of ANSI Common Lisp by Paul Graham. Code available at 
www.eecs.harvard.edu/onlisp/