G.B. · G J · G.J. Blower EngTech · J.B.
| title | ISBN-13 | year of publication |
|---|---|---|
| Plumbing: Bk.1 | 978-0-582-43228-4 | 2002 |
| Plumbing: Mechanical Services | 978-0-582-43229-1 | 2002 |
| Plumbing: Mechanical Services, Book 1 | 978-0-13-197620-7 | 2006 |
| Plumbing: Mechanical Services: Book 1 | 978-0-582-23659-2 | 1995 |
| Plumbing: Mechanical Services: Book 2 | 978-0-13-197621-4 | 2007 |