| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Freshwater Aquarium Chemistry: A Comprehensive Guide for Tropical Fish Hobbyists | 978-0-9841216-1-8 (0-9841216-1-7) | 2009 |
| Freshwater Test Kit Review 2010 | 978-0-9841216-2-5 (0-9841216-2-5) | 2010 |
| Freshwater Test Kit Review | 978-0-9841216-0-1 (0-9841216-0-9) | 2000 |
D. J. · D. J. R. · D.K · (D-R) · Dr. K. · J R · K. R. · Kevin J.