C. G. · R. C. · Robert C. · Robert G.
Cooper Square Publishing Llc · Farcountry Press
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Bighorn Sheep: Mountain Monarchs | 978-1-55971-641-3 (1-55971-641-X) | 1997 |
| Natchez Trace: Two Centuries of Travel | 978-1-56037-092-5 (1-56037-092-0) | 1996 |