| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| National Safety Tractor and Machinery Operation Program Student Manual | 978-O-913163-39-9 (O-913163-39-2) | 2013 | The Ohio State University |
n/c · n/s · National Council · National Safety Council · S.C. · S.O.