| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| 101 Ways to Pay Less Tax 2009/2010 | 978-1-906971-06-9 (1-906971-06-4) | 2009 |
| Tax Answers at a Glance | 978-1-902646-84-8 (1-902646-84-3) | 2002 |
| Tax Answers at a Glance | 978-1-902646-62-6 (1-902646-62-2) | 2000 |
H. C. · H. M. · H.M. Williams · H.W. · H. Williams · M. C. · M. Williams