Ludwig, Charles Herbert.
Archival Resources
| Role | Title | Holding Repository | |
|---|---|---|---|
| creatorOf | Ludwig, Charles Herbert. The history and methods of electrification of the Pennsylvania Railroad between Baltimore and Washington, D.C. [electronic resource] / by Charles Herbert Ludwig. | University of Maryland (College Park, Md.). Libraries | |
| creatorOf | Ludwig, Charles Herbert. The history and methods of electrification of the Pennsylvania Railroad between Baltimore and Washington, D.C. / by Charles Herbert Ludwig. | University of Maryland (College Park, Md.). Libraries |
Bibliographic and Digital Archival Resources
| Role | Title | Holding Repository |
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Filters:
| Relation | Name | |
|---|---|---|
| associatedWith | Pennsylvania Railroad | corporateBody |
| Place Name | Admin Code | Country | |
|---|---|---|---|
| United States | |||
| United States |
| Subject |
|---|
| Railroad engineering |
| Railroads |
| Occupation |
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| Activity |
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