Problem Book Updates

Corrections & Updates to Old Editions of the Problem Book (14th -20th Editions)

Edition you Have	Year	Link you Need for Corrections & Updates
21^st	2015	Corrections for 21^st (to covert to 22^nd, 2016)
20^th, re-revised	2014	Corrections for 20^th, re-rev (to covert to 21^st 2015)
20^th, revised	2013	Corrections for 20^th, rev (to covert to re-revised, 2014)
20^th	2012	Corrections for 20^th (to covert to 20^th ed, revised, 2013)
19^th, re-revised	2011	Corrections for 19^th, re-rev (to convert to 20^th ed, 2012)
19^th, revised	2010	Corrections for 19^th, rev (to covert to re-revised, 2011)
19^th	2009	Corrections for 19^th (to covert to revised '10)
18^th, revised	2008	Updates for 18^th, rev (to convert to the 19^th)
18^th	2007	Corrections for 18^th
17^th, revised	2005	Updates for 17^th, rev (to convert to the 18^th)
17^th	2004	Corrections to the 17^th
16^th, revised	2003	Updates for 16^th, rev (to convert to the 17^th)
16^th	2002	Corrections to the 16^th
14^th or 15^th	1999-2001	Corrections & Updates

Problem numbers are the same in the 18^th -20^th editions. They are similar in the 17^th, but see updates for details.

We strongly recommend using the most recent edition of the problem book. (We do NOT get royalties.) If you use an earlier one, be sure to take account of all corrections and updates.