Message delivery system for the National Library and Information Service Network, general requirements /
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| Other Authors: | |
| Format: | Book |
| Language: | English |
| Published: |
Washington :
Library of Congress,
1978.
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| Series: | Network planning paper ;
no. 4. |
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| Physical Description: | iv, 35 pages : illustrations ; 27 cm. |
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| ISBN: | 0844403008 |
| ISSN: | 0160-9742 ; |