W G · W. Gray · Wayne B Gray · Wayne D. Gray
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Spatial Aspects of Environmental Policy | 978-0-8153-9717-5 (0-8153-9717-8) | 2017 | |
| Spatial Aspects of Environmental Policy | 978-0-7546-2483-7 (0-7546-2483-8) | 2005 | Jacqueline Geoghegan |