Dr. Ray V. Herren · R. H. · Ray H. · Ray V Herren
| title | ISBN-13 | year of publication |
|---|---|---|
| Agricultural Mechanics: Fundamentals & Applications | 978-1-4390-4273-1 | 2009 |
| Exploring Agriscience 3e | 978-1-4018-9644-7 | 2005 |
| Lab Manual to Accompany Agricultural Mechanics | 978-1-4018-5958-9 | 2005 |
| Lab Manual to Accompany Exploring Agriscience, 4th edition | 978-1-4354-3968-9 | 2010 |