| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Farming with the Wild | 978-1-57805-092-5 (1-57805-092-8) | 2003 | Daniel Imhoff · Dan Imhoff |
| Paper or Plastic: Searching for Solutions to an Overpackaged World | 978-1-57805-117-5 (1-57805-117-7) | 2005 | Daniel Imhoff |
R.C. · Robert Cara · Robert Carey · Robert Cario · Robert Carr · Robert Carrow · Robert Cherry · Robert Corriu · Robert Crahe · Robert Crowe · Robert Curry · Roberta Carr · Roberta Cray