| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2007 | 978-0-9792519-5-5 | Russell B. Bowen | Ventilation Workbook |
| 2008 | 978-0-9792519-8-6 | Russell Bowen | Bowen EHS Book Of CIH Exam Practice Problems: 50 Questions (Volume 2) |
| '' | 978-0-9792519-9-3 | Russell Bowen | Bowen EHS Book Of CSP Exam Practice Problems: 50 Questions (Volume 2) |