McDonald and Woodward Publishing Company
| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| Wagon-Making in the United States during the Late-19th through Mid-20th Centuries: A Study of the Gruber Wagon Works at Mt. Pleasant, Pennsylvania | 978-0-939923-97-7 (0-939923-97-1) | 2005 |
C.R. · C. Ray · Clayton E. Ray