Corrections & Updates to Old Editions of the
Problem Book (14th -18th Editions)
| Edition you Have | Year | Link you Need for Corrections & Updates |
| 18th, revised | 2008 | Updates for 18th, rev (to convert to the 19th) |
| 18th | 2007 | Corrections for 18th |
| 17th, revised | 2005 | Updates for 17th, rev (to convert to the 18th) |
| 17 | 2004 | Corrections to the 17th |
| 16th, revised | 2003 | Updates for 16th, rev (to convert to the 17th) |
| 16th | 2002 | Corrections to the 16th |
| 14th or 15th | 1999-2001 | Corrections & Updates |
Problem numbers are the same in the 18th & 19th editions. They are similar in the 17th, 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.