R. C. · Richard C. · Richard S. Cromwell
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| DIY Inventions | 978-0-646-56614-6 (0-646-56614-8) | 2013 | |
| Forest and Right-of-Way Pest Control | 978-1-879906-19-8 (1-879906-19-8) | 1996 | Patrick J. Marer · Mark Grimes |