C.D. · G. C. · G D · Gregory D
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| The Citizen's Guide to Planning 4th Edition | 978-1-932364-65-1 (1-932364-65-X) | 2009 | Christopher Duerksen · Donald L Elliott |
| The Citizen's Guide to Planning | 978-1-138-48732-1 (1-138-48732-5) | 2009 | Christopher Duerksen · Donald L Elliott |