ISDN in the office - HICOM : technology and applications of the HICOM ISDN communication system
36
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Cyhoeddwyd: |
Berlin : Siemens Aktiengesellshaff,
1985
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Pynciau: |
36
Fformat: | |
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Cyhoeddwyd: |
Berlin : Siemens Aktiengesellshaff,
1985
|
Pynciau: |