Book Covers / Telephone Numbering Plans of the Ruhr Valley
Transcribed Data
| Title | Telephone Numbering Plans of the Ruhr Valley |
|---|---|
| Author | Deutsche Modelltelefonvermittlungsstellen-gesellschaft e.V. |
| ISBN | -- |
| Number | 9 782230 710614 |
| Refs | |
| Location | Ruhr Valley |
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