Universal decimal classification : UDC 654: telecommunication services: organization, administration and operation.
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| Corporate Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
London :
British Standards Institution,
1969..
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| Edition: | Eng. full ed. |
| Series: | British standard 1969 ;
1000 [654]: F.I.D. publication ; no. 179. |
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| Item Description: | Fourth international edition. |
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| Physical Description: | 11 p. ; 30 cm. |
| ISBN: | 0580050394 |