PTT bulletin / Post-, Telegraf- och Telefon Internationalen
English ed.: PTT-bulletin (ZK 50140). - Germen ed.: PTT Bulletin (ZDK 43829).
| Institution: | International Institute of Social History |
|---|---|
| Format: | TEXT |
| Published: |
Bern.
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10622/4C27F9E3-3EC2-4FAD-BB4F-7CFF066505DA |