| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| 1984 Keystone Coal Industry Manual with Foldout Maps | 978-O-O7-6O69O1-9 (O-O7-6O69O1-X) | 1984 | George F. Neilson · Charles H. Daly |
C.R. · C. Richardson · Charles R. · Charles Richardson · Charles V