W H · William H. · William T. Hamel
| title | ISBN-13 (ISBN-10)  | year of publica- tion  | other author(s) | 
|---|---|---|---|
| Clean Air Compliance and Enforcement Manual | 978-0-07-172440-1 (0-07-172440-0)  | 1993 | Gregory O'Hara | 
| Sam Whitton and the Angels Prophecy | 978-0-9759818-7-0 (0-9759818-7-0)  | 2006 | |