Bill Topp George Demetriou · Demetriou George · G D
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Football Rule Differences | 978-1-58208-061-1 (1-58208-061-5) | 2005 | Paul Whiteside · Jeff Stern |
| Judgment Calls: A Football Officiating Philosophy | 978-1-58208-040-6 (1-58208-040-2) | 2003 | |
| Smart Baseball Umpiring | 978-1-58208-007-9 (1-58208-007-0) | 1999 | Bill Topp |