H.T. · H. Thoms · Hal P. Thoms
Big Lake Media Inc · RPM Auto Books
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Porsche Racing Milestones: 50 Years of Competition, Types 356 to 962, Gmund 1948 to Montery 1998 | 978-0-9631726-3-1 (0-9631726-3-8) | 2001 | |
| Porsche Speedster 50th Anniversary: Celebration of an Icon | 978-0-9746468-1-7 (0-9746468-1-4) | 2005 | Owen Edwards · Steve Heinrichs · Roy E Dryer III · Jerry Nelson |