Q. David Bowers
Research Editor 3
| A Guide Book of United Stated Coins 2010 | Spiral-Bound | |
| A Guide Book of United Stated Coins 2020 | Spiral-Bound | |
| A Guide Book of United Stated Coins 2021 | Hardback |
| A Guide Book of United Stated Coins 2010 | Spiral-Bound | |
| A Guide Book of United Stated Coins 2020 | Spiral-Bound | |
| A Guide Book of United Stated Coins 2021 | Hardback |