L.D. · R.D. · R. L · Roy Luther Donahue
| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Delmar's Agriscience Dictionary with Searchable CD-ROM | 978-1-111-31892-5 | 1998 | Ray V Herren |
| Soil and Water Conservation for Productivity and Environmental Protection | 978-0-13-096807-4 | 2003 | Frederick R. Troeh Professor Emeritus · J. Arthur Hobbs Emeritus |
| Soil and Water Conservation: Productivity and Environmental Protection | 978-0-13-622200-2 | 1998 | Frederick R. Troeh · J. Arthur Hobbs |
| Soils in Our Environment | 978-0-13-095803-7 | 1995 | Raymond W. Miller |