From: Functional Data Structures
Subject: Book FS: Purely Functional Data Structures, by Okasaki (eBay)
Date: Fri, 18 Aug 2000 05:11:23 +0000
Message-ID: <399CC6AE.CF8530B8@worldnet.att.spammerz.net>

Purely Functional Data Structures, by Chris Okasaki 
http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=413079460

and don't forget to check click on "seller's other auctions"